No wormhole? It's an exceptional power, imho. AoE stun, plus relocation of the foes to where you choose, and it combines with crushing field to be an AoE pseudo-hold.
Crush cycles fairly quickly, so I'd be tempted to drop a recharge and stick in another immob. Also, I'd always say that you should 3 slot your hold with hold durations - it makes control a *lot* easier if foes are being held for longer. Also, 3 slots in health is a bit pointless for a squishy, particularly for a controller - you should spend them in other powers that prevent the damage being dealt in the first place, perhaps in your singularity, which you will surely want to marry. Similarly, I don't know the exact figures but I suspect that the extra slot in swift isn't doing much, and might be better instead with an additional endrdx in EF, which is very endurance-heavy.
I've found that radiant aura cycles extremely quickly with only one recredux, but there might be something in having two. I think that having three will be a bit of a waste though, because it's such a fast recharge at its base anyway.
I mentioned health earlier, and in fact you could even skip it, get hurdle at 24 and at 30 go instead for lift, which is a form of very light control in itself, since when they're up in the air they can't attack you.
Is this a PvP build? If so, I can understand some of your choices which otherwise I've disagreed with above - wormhole's not great in PvP, and those recharges will help to stack holds to overcome resistance, but if it *is* PvP you might want to consider slotting LR with some slows, using the slots gained by not slotting health or by skipping it altogether.
Just my opinions, based on my grav/rad and my playstyle. 
PvE/PvP? Solo/Team/Both?
PvE and Teaming.
I never liked wormhole, it's too fiddly to use in an action packed frantic team.
I've never got above level 10 or so with any rad, I've teamed with plenty but the Rad slotting I have no idea about and have practically gone from some other peoples builds.
This is probably how I would play a Grav/Rad:
---------------------------------------------
Exported from Ver: 1.7.6.0 of the CoH_CoV Character Builder - (http://sherksilver.coldfront.net/index.php)
---------------------------------------------
Name:
Level: 50
Archetype: Controller
Primary: Gravity Control
Secondary: Radiation Emission
---------------------------------------------
01) --> Crush==> Acc(1) Dmg(3) Dmg(15) Dmg(17) Acc(46)
01) --> Radiant Aura==> Heal(1) Heal(17) Heal(36) Rechg(46) Rechg(46)
02) --> Gravity Distortion==> Acc(2) Acc(3) Hold(9) Hold(9) Rechg(13) Rechg(15)
04) --> Accelerate Metabolism==> Rechg(4) Rechg(5) Rechg(5) EndMod(37) EndMod(40) EndMod(42)
06) --> Radiation Infection==> TH_DeBuf(6) TH_DeBuf(7) TH_DeBuf(7) DefDeBuf(43) EndRdx(43)
08) --> Recall Friend==> IntRdx(8)
10) --> Propel==> Acc(10) Dmg(11) Dmg(11) Dmg(13) Acc(50)
12) --> Swift==> Run(12)
14) --> Teleport==> EndRdx(14) Range(48) Range(50)
16) --> Hurdle==> Jump(16)
18) --> Gravity Distortion Field==> Acc(18) Acc(19) Hold(19) Hold(25) Rechg(27) Rechg(27)
20) --> Stamina==> EndMod(20) EndMod(21) EndMod(21)
22) --> Hasten==> Rechg(22) Rechg(23) Rechg(23)
24) --> Crushing Field==> Acc(24) Acc(25) EndRdx(31)
26) --> Wormhole==> Acc(26) Acc(29) DisDur(31) DisDur(34) Rechg(36) Rechg(36)
28) --> Enervating Field==> EndRdx(28) EndRdx(29)
30) --> Lingering Radiation==> Acc(30) Acc(31) Rechg(37) Rechg(37) Slow(43) Rechg(50)
32) --> Singularity==> Acc(32) Dmg(33) Dmg(33) Dmg(33) Hold(34) Hold(34)
35) --> Mutation==> Rechg(35)
38) --> EM Pulse==> Acc(38) Acc(39) Hold(39) Hold(39) Rechg(40) Rechg(40)
41) --> Conserve Power==> Rechg(41) Rechg(42) Rechg(42)
44) --> Temp Invulnerability==> DmgRes(44) DmgRes(45) DmgRes(45) EndRdx(45)
47) --> Power Boost==> Rechg(47) Rechg(48) Rechg(48)
49) --> Super Speed==> Run(49)
A few comments:
- You can take either Crush or Lift in the low-levels for nice single-target damage. I found Crush a bit more useful later on because of containment, although the knockup of Lift is handy too.
- I took Propel on my Grav and used it a lot when soloing, but in large teams, it becomes a bit worthless at higher levels, so you may drop it at some point.
- I agree with the others that Wormhole + Crushing Field is a great combo, but also becomes less useful in the 40s unless you plan to solo a lot. I would still keep it.
- I wouldn't bother with more than 1 Def_Debuf for Rad Infection unless you have spare slots.
- Singularity has decent accuracy, no need for more than 1 enhance imho. Slot for damage/holds instead.
- I actually have EndMod enhances in EM Pulse on my /Rad which does some nice endurance drain. But your slotting is more conventional.
- I agree with Graviton, Health is almost useless for squishies and certainly not worth extra slots.
- It would be nice to take EF earlier, but not sure what I'd swap it for (unless you're happy delaying Stamina a bit).
And try not to delete it when you get to 50 this time! 
PS: Happy B-Day MaX 
CoX 50s: <ill/rad> <ice/ice> <fire/kin> <grav/sonic> <ice/storm> <earth/kin> <kin/elec> <cold/psy> <thugs/dark> <fire/dark> <dark/elec> <night widow> <EM/ninj> <mind/icy>
If you're going for PvE teaming, you'll need all AoE control you can get. And Wormhole is your best AoE control power.
No it's not
[ QUOTE ]
No it's not
[/ QUOTE ]
haha...can't argue with that kinda logic
SingStar:
"Extremists LOVE to fish to get us annoyed so we break the forum rules."
CRACK68:
"The origin of life wasn't planned either, should all life be declared a bug and wiped out?"
Lionsbane:
"You know me.Ever the realist"
I've working on a Grav/Rad PVP build, but so far haven't levelled it much.
This is the planned PVE build, which could probably use some work:
---------------------------------------------
Exported from Ver: 1.7.6.0 of the CoH_CoV Character Builder
---------------------------------------------
Name: Insert Name Here
Level: 50
Archetype: Controller
Primary: Gravity Control
Secondary: Radiation Emission
---------------------------------------------
01) --> Crush ==> Acc| Dmg| Dmg| Dmg
01) --> Radiant Aura ==> Rechg| Rechg| Heal| Heal| Heal
02) --> Radiation Infection ==> TH_DeBuf| TH_DeBuf| TH_DeBuf| EndRdx
04) --> Accelerate Metabolism ==> Rechg| Rechg| Rechg| EndMod| EndMod| EndMod
06) --> Gravity Distortion ==> Acc| Acc| Hold| Hold| Rechg| Rechg
08) --> Propel ==> Acc| Acc| Dmg| Dmg| Dmg
10) --> Hasten ==> Rechg| Rechg| Rechg
12) --> Enervating Field ==> EndRdx| EndRdx
14) --> Super Speed ==> Run| EndRdx
16) --> Hurdle ==> Jump| Jump| Jump
18) --> Swift ==> Run
20) --> Stamina ==> EndMod| EndMod| EndMod
22) --> Gravity Distortion Field ==> Acc| Acc| Hold| Hold| Rechg| Rechg
24) --> Lingering Radiation ==> Acc| Acc| Rechg| Rechg| Rechg| Slow
26) --> Combat Jumping ==> Jump| Jump
28) --> Super Jump ==> Jump
30) --> Acrobatics ==> EndRdx
32) --> Singularity ==> Acc| Hold| Dmg
35) --> Wormhole ==> Acc| Acc| DisDur| Rechg| Rechg
38) --> EM Pulse ==> Acc| Acc| Hold| Rechg| Rechg| Rechg
41) --> Fire Ball ==> Acc| Dmg| Dmg| Dmg| Rechg| Rechg
44) --> Fire Shield ==> DmgRes| DmgRes| DmgRes| EndRdx
47) --> Fire Blast ==> Acc| Dmg| Dmg| Dmg| Rechg
49) --> Crushing Field ==> Acc| Acc
---------------------------------------------
01) --> Sprint ==> Empty
01) --> Brawl ==> Empty
02) --> Rest ==> Empty
01) --> Containment ==> Empty
01) --> Power Quick ==> Empty
---------------------------------------------
And this is the planned PVP respec, which I am fairly confident about:
---------------------------------------------
Exported from Ver: 1.7.6.0 of the CoH_CoV Character Builder
---------------------------------------------
Name: Nerf Pliz
Level: 50
Archetype: Controller
Primary: Gravity Control
Secondary: Radiation Emission
---------------------------------------------
01) --> Crush ==> Acc| Acc| Immob| Rechg
01) --> Radiant Aura ==> Rechg| Rechg| Rechg| Heal| Heal| Heal
02) --> Radiation Infection ==> TH_DeBuf| TH_DeBuf| TH_DeBuf| EndRdx| EndRdx
04) --> Accelerate Metabolism ==> Rechg| Rechg| Rechg| EndMod| EndMod| EndMod
06) --> Gravity Distortion ==> Acc| Acc| Hold| Hold| Rechg| Rechg
08) --> Propel ==> Acc| Acc| Dmg| Dmg| Dmg| Range
10) --> Hasten ==> Rechg| Rechg| Rechg
12) --> Enervating Field ==> EndRdx| EndRdx| EndRdx
14) --> Super Speed ==> Run| EndRdx
16) --> Hurdle ==> Jump| Jump| Jump
18) --> Swift ==> Run
20) --> Stamina ==> EndMod| EndMod| EndMod
22) --> Crushing Field ==> Acc| Acc| Rechg| Rechg
24) --> Lingering Radiation ==> Acc| Acc| Rechg| Rechg| Rechg| Slow
26) --> Combat Jumping ==> Jump| Jump
28) --> Super Jump ==> Jump
30) --> Acrobatics ==> EndRdx
32) --> Singularity ==> Acc| Acc| Hold| Hold| Dmg| Dmg
35) --> Assault ==> EndRdx| EndRdx
38) --> Tactics ==> EndRdx| EndRdx| TH_Buf| TH_Buf
41) --> Power Blast ==> Acc| Acc| Dmg| Dmg| Dmg| Rechg
44) --> Temp Invulnerability ==> DmgRes| DmgRes| DmgRes| EndRdx| EndRdx
47) --> Power Boost ==> Rechg| Rechg| Rechg
49) --> Conserve Power ==> Rechg| Rechg| Rechg
---------------------------------------------
01) --> Sprint ==> Empty
01) --> Brawl ==> Empty
02) --> Rest ==> Empty
01) --> Containment ==> Empty
---------------------------------------------
---------------------------------------------
Exported from Ver: 1.7.6.0 of the CoH_CoV Character Builder
---------------------------------------------
Name: Wamdue
Level: 50
Archetype: Controller
Primary: Gravity Control
Secondary: Radiation Emission
---------------------------------------------
01) --> Crush==> Acc(1)Acc(17)Immob(33)Immob(34)Rechg(34)Rechg(34)
01) --> Radiant Aura==> Heal(1)Heal(7)Heal(9)Rechg(19)Rechg(19)Rechg(37)
02) --> Gravity Distortion==> Acc(2)Acc(3)Hold(3)Hold(7)Rechg(11)Rechg(11)
04) --> Radiation Infection==> TH_DeBuf(4)TH_DeBuf(5)TH_DeBuf(5)DefDeBuf(36)DefDeBuf(36)DefDeBuf(36)
06) --> Recall Friend==> Rechg(6)
08) --> Crushing Field==> Acc(8)Acc(9)Immob(31)Immob(31)EndRdx(31)Rechg(33)
10) --> Enervating Field==> EndRdx(10)EndRdx(37)
12) --> Accelerate Metabolism==> Rechg(12)Rechg(13)Rechg(13)EndMod(15)EndMod(15)EndMod(17)
14) --> Teleport==> EndRdx(14)Range(37)Range(46)Range(48)
16) --> Hasten==> Rechg(16)
18) --> Gravity Distortion Field==> Acc(18)Acc(21)Hold(23)Hold(23)Rechg(29)Rechg(29)
20) --> Lingering Radiation==> Acc(20)Acc(21)Rechg(25)Rechg(25)Rechg(40)
22) --> Swift==> Run(22)Run(43)
24) --> Health==> Heal(24)Heal(46)Heal(46)
26) --> Stamina==> EndMod(26)EndMod(27)EndMod(27)
28) --> Super Speed==> Run(28)Run(43)
30) --> Hurdle==> Jump(30)Jump(43)
32) --> Singularity==> Acc(32)Acc(33)Acc(42)
35) --> Mutation==> Rechg(35)
38) --> EM Pulse==> Acc(38)Acc(39)Hold(39)Hold(39)Rechg(40)Rechg(40)
41) --> Conserve Power==> Rechg(41)Rechg(42)Rechg(42)
44) --> Temp Invulnerability==> DmgRes(44)DmgRes(45)DmgRes(45)EndRdx(45)
47) --> Power Boost==> Rechg(47)Rechg(48)Rechg(48)
49) --> Team Teleport==> EndRdx(49)EndRdx(50)Rechg(50)Rechg(50)
---------------------------------------------
01) --> Sprint==> Run(1)
01) --> Brawl==> Acc(1)
01) --> Containment==> Empty(1)
02) --> Rest==> Rechg(2)
---------------------------------------------