As you know, auto powers give lot lower defense and if you have to dump something I strongly suggest you dump them.
And start with Lucky (7.5% def vs AoE), then if you need more powers check out Agile and Dodge, I wouldnt take them out but if something has to go, the lowest defense powers are those. But also remember that you need all of them in ideal build, the defense has to be as high as possible couze when they hit you... it hurts, and SR doesnt have self heal.
Dont ever think about dumping a toggle or quickness please 
manf out.
Nah I won't dump any toggle nor quickness believe me
Now that you mention, I might just dump Lucky and go with CJ instead ? Even though I find jump kick to be cool enough for spines to get abit more 1v1 dmg against bosses etc.
I just love Quills to much 
Having tried a few build the passive I miss the least is agile, as that's what I dont have right now. Lucky covers both ranged and melee AoEs and since Evasion got nerfed comes as a nice boost to many late game foes
"Well, they found my diary today.
They were appropriately appalled
at the discovery of the eight victims
They're now putting it all together.
Women wrapped in silk
with one leg missing
Eight legs, one body, silk,
spider, brilliant!"
It would be easier to give you an advice if you showed us your build My Spines/SR is L41 and it got all SR powers and Lunge, SBurst, BU, Impale, Quills and Ripper from Spines.
@False Fiction - Virtue / Defiant
Current projects - [Glaciologist - Ill/Cold Troller] [Cloudshaper - Storm/Dark Def] [Harald Wartooth - Elec/Psi Domi]
This is the way I played my Spines/Sr till lv50, when i pvp specced it. I got to say I was very happy with it:
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Exported from Ver: 1.7.6.0 of the CoH_CoV Character Builder - (http://sherksilver.coldfront.net/index.php)
---------------------------------------------
Name:
Level: 50
Archetype: Scrapper
Primary: Spines
Secondary: Super Reflexes
---------------------------------------------
01) --> Lunge==> Acc(1) Dmg(46) Dmg(46) Dmg(48) Acc(48)
01) --> Focused Fighting==> DefBuf(1) DefBuf(3) DefBuf(3) EndRdx(23) EndRdx(36) EndRdx(43)
02) --> Spine Burst==> Acc(2) Acc(15) Dmg(17) Dmg(17) Dmg(19) Rechg(36)
04) --> Focused Senses==> DefBuf(4) DefBuf(5) DefBuf(5) EndRdx(23) EndRdx(36) EndRdx(45)
06) --> Build Up==> Rechg(6) Rechg(7) Rechg(7)
08) --> Impale==> Acc(8) Dmg(9) Dmg(9) Dmg(11) Acc(11) Rechg(19)
10) --> Practiced Brawler==> Rechg(10) Rechg(15)
12) --> Hasten==> Rechg(12) Rechg(13) Rechg(13)
14) --> Super Speed==> Run(14)
16) --> Hurdle==> Jump(16) Jump(46) Jump(48)
18) --> Health==> Heal(18)
20) --> Stamina==> EndMod(20) EndMod(21) EndMod(21)
22) --> Stimulant==> IntRdx(22)
24) --> Aid Self==> Heal(24) Heal(25) Heal(25) IntRdx(31) IntRdx(31) Rechg(31)
26) --> Ripper==> Acc(26) Dmg(27) Dmg(27) Dmg(29) Acc(29) EndRdx(34)
28) --> Agile==> DefBuf(28) DefBuf(42) DefBuf(43)
30) --> Quickness==> Run(30)
32) --> Throw Spines==> Acc(32) Acc(33) Dmg(33) Dmg(33) Dmg(34) Rechg(34)
35) --> Quills==> EndRdx(35) Acc(37) Dmg(37) Dmg(37) Dmg(40) EndRdx(43)
38) --> Elude==> Rechg(38) Rechg(39) Rechg(39) DefBuf(39) DefBuf(40) DefBuf(40)
41) --> Dodge==> DefBuf(41) DefBuf(42) DefBuf(42)
44) --> Conserve Power==> Rechg(44) Rechg(45) Rechg(45)
47) --> Laser Beam Eyes==> Acc(47)
49) --> Energy Torrent==> Acc(49) Acc(50) Dmg(50) Dmg(50)
Hello!
I am just seeking some advice regarding my current lvl 40 Spines / Super Reflexes scrapper...
First of all I love the scrapper, having loads of fun dealing a stupid amount of AoE damage.
At the moment though I'm unsure about what build to use.. I really want Quills for the extra AoE, but then again - I will lose a SR power if I am to take the other "normal" spine powers.
Is there really any powers you dont want in the SR pool?
I'm at work so cant really post a build at the moment, but any help is appreciated