Please improve my build! (Katana/Regen)

As title says. I cooked this up for my Scrappette but I'm sure the clever folks here could find something to add. (Without making it much more expensive!)
Thanks in advance!

Hero Plan by Mids' Hero Designer 1,401
http://www.cohplanner.com/

[u]Click this DataLink to open the build![u]

Level 50 Magic Scrapper
Primary Power Set: Katana
Secondary Power Set: Regeneration
Power Pool: Leaping
Power Pool: Fitness
Power Pool: Fighting
Ancillary Pool: Body Mastery

Hero Profile:
Level 1: Gambler's Cut -- C'ngImp-Acc/Dmg(A), C'ngImp-Dmg/Rchg(3), C'ngImp-Acc/Dmg/Rchg(3), C'ngImp-Acc/Dmg/EndRdx(5), C'ngImp-Dmg/EndRdx/Rchg(5), Achilles-ResDeb%(7)
Level 1: Fast Healing -- RgnTis-Regen+(A), Numna-Regen/Rcvry+(7), Numna-Heal(9), Numna-Heal/EndRdx(9)
Level 2: Reconstruction -- Dct'dW-EndRdx/Rchg(A), Dct'dW-Heal/Rchg(11), Dct'dW-Heal/EndRdx/Rchg(11), Dct'dW-Heal(13), Dct'dW-Rchg(13)
Level 4: Quick Recovery -- EndMod-I(A), EndMod-I(15)
Level 6: Build Up -- RechRdx-I(A)
Level 8: Divine Avalanche -- C'ngImp-Acc/Dmg(A), C'ngImp-Dmg/Rchg(15), C'ngImp-Acc/Dmg/Rchg(17), C'ngImp-Acc/Dmg/EndRdx(17), LkGmblr-Rchg+(19), C'ngImp-Dmg/EndRdx/Rchg(19)
Level 10: Dull Pain -- Dct'dW-EndRdx/Rchg(A), Dct'dW-Heal/Rchg(21), Dct'dW-Heal/EndRdx/Rchg(21), Dct'dW-Heal(23), Dct'dW-Rchg(23)
Level 12: Combat Jumping -- Zephyr-Travel(A), Zephyr-Travel/EndRdx(25), Zephyr-ResKB(25), Winter-ResSlow(27), LkGmblr-Rchg+(27)
Level 14: Super Jump -- Zephyr-Travel(A), Zephyr-Travel/EndRdx(29), Zephyr-ResKB(29)
Level 16: Integration -- Numna-Heal/EndRdx(A), Numna-Heal/Rchg(31), Numna-Heal(31), Tr'ge-Heal/EndRdx(31)
Level 18: The Lotus Drops -- Sciroc-Acc/Dmg(A), Sciroc-Dmg/EndRdx(33), Sciroc-Dmg/Rchg(33), Sciroc-Acc/Dmg/EndRdx(33), Sciroc-Dam%(34)
Level 20: Swift -- Run-I(A)
Level 22: Health -- Numna-Heal/EndRdx(A), Numna-Heal/Rchg(34), Numna-Heal(34)
Level 24: Stamina -- EndMod-I(A), EndMod-I(36)
Level 26: Soaring Dragon -- Mako-Acc/Dmg(A), Mako-Dmg/EndRdx(36), Mako-Dmg/Rchg(36), Mako-Acc/EndRdx/Rchg(37), Mako-Acc/Dmg/EndRdx/Rchg(37), Mako-Dam%(37)
Level 28: Instant Healing -- Dct'dW-EndRdx/Rchg(A), Dct'dW-Heal/Rchg(39), Dct'dW-Heal/EndRdx/Rchg(39), Dct'dW-Heal(39), Dct'dW-Rchg(40)
Level 30: Kick -- Acc-I(A)
Level 32: Golden Dragonfly -- Sciroc-Acc/Dmg(A), Sciroc-Dmg/EndRdx(40), Sciroc-Dmg/Rchg(40), Sciroc-Acc/Rchg(42), Sciroc-Acc/Dmg/EndRdx(42)
Level 35: Tough -- S'fstPrt-ResDam/Def+(A), ResDam-I(42), ResDam-I(43)
Level 38: Moment of Glory -- LkGmblr-Rchg+(A), LkGmblr-Def/Rchg(43), RechRdx-I(43)
Level 41: Weave -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(45), LkGmblr-Def/EndRdx/Rchg(45), LkGmblr-Def(45)
Level 44: Focused Accuracy -- GSFC-ToHit(A), GSFC-ToHit/Rchg(46), GSFC-ToHit/Rchg/EndRdx(46), GSFC-Rchg/EndRdx(46), GSFC-ToHit/EndRdx(48), GSFC-Build%(48)
Level 47: Laser Beam Eyes -- Thundr-Acc/Dmg(A), Thundr-Acc/Dmg/Rchg(48), Thundr-Acc/Dmg/EndRdx(50)
Level 49: Energy Torrent -- Posi-Acc/Dmg(A), Dmg-I(50), Det'tn-Acc/Dmg(50)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Critical Hit
------------
[u]Set Bonus Totals:[u]<ul type="square">[*]5,5% DamageBuff(Smashing)[*]5,5% DamageBuff(Lethal)[*]5,5% DamageBuff(Fire)[*]5,5% DamageBuff(Cold)[*]5,5% DamageBuff(Energy)[*]5,5% DamageBuff(Negative)[*]5,5% DamageBuff(Toxic)[*]5,5% DamageBuff(Psionic)[*]4,25% Defense(Smashing)[*]4,25% Defense(Lethal)[*]10,5% Defense(Fire)[*]10,5% Defense(Cold)[*]11,8% Defense(Energy)[*]11,8% Defense(Negative)[*]3% Defense(Psionic)[*]5,5% Defense(Melee)[*]16,8% Defense(Ranged)[*]18% Defense(AoE)[*]12% Enhancement(Heal)[*]55% Enhancement(RechargeTime)[*]41% Enhancement(Accuracy)[*]5% FlySpeed[*]165,7 HP (12,4%) HitPoints[*]5% JumpHeight[*]5% JumpSpeed[*]Knockback (Mag -8)[*]Knockup (Mag -8)[*]MezResist(Held) 3,3%[*]MezResist(Immobilize) 7,7%[*]MezResist(Terrorized) 6,6%[*]4,5% (0,08 End/sec) Recovery[*]76% (4,25 HP/sec) Regeneration[*]20% ResEffect(FlySpeed)[*]20% ResEffect(RechargeTime)[*]20% ResEffect(RunSpeed)[*]3,78% Resistance(Fire)[*]3,78% Resistance(Cold)[*]6,25% Resistance(Negative)[*]5% RunSpeed[/list]------------
[u]Set Bonuses:[u]
[u]Crushing Impact[u]
(Gambler's Cut)<ul type="square">[*] MezResist(Immobilize) 2,2%[*] 15,1 HP (1,12%) HitPoints[*] 7% Enhancement(Accuracy)[*] 5% Enhancement(RechargeTime)[/list][u]Numina's Convalescence[u]
(Fast Healing)<ul type="square">[*] 12% (0,67 HP/sec) Regeneration[*] 25,1 HP (1,87%) HitPoints[/list][u]Doctored Wounds[u]
(Reconstruction)<ul type="square">[*] MezResist(Terrorized) 2,2%[*] 1,26% Resistance(Fire,Cold)[*] 4% Enhancement(Heal)[*] 5% Enhancement(RechargeTime)[/list][u]Crushing Impact[u]
(Divine Avalanche)<ul type="square">[*] MezResist(Immobilize) 2,2%[*] 15,1 HP (1,12%) HitPoints[*] 7% Enhancement(Accuracy)[*] 5% Enhancement(RechargeTime)[/list][u]Luck of the Gambler[u]
(Divine Avalanche)<ul type="square">[*] 7,5% Enhancement(RechargeTime)[/list][u]Doctored Wounds[u]
(Dull Pain)<ul type="square">[*] MezResist(Terrorized) 2,2%[*] 1,26% Resistance(Fire,Cold)[*] 4% Enhancement(Heal)[*] 5% Enhancement(RechargeTime)[/list][u]Blessing of the Zephyr[u]
(Combat Jumping)<ul type="square">[*] 3,13% Defense(Ranged), 1,56% Defense(Energy), 1,56% Defense(Negative)[*] 3,13% Defense(AoE), 1,56% Defense(Fire), 1,56% Defense(Cold)[*] Knockback Protection (Mag -4)[/list][u]Winter's Gift[u]
(Combat Jumping)<ul type="square">[*] 20% ResEffect(RunSpeed), 20% ResEffect(RechargeTime), 20% ResEffect(FlySpeed)[/list][u]Luck of the Gambler[u]
(Combat Jumping)<ul type="square">[*] 7,5% Enhancement(RechargeTime)[/list][u]Blessing of the Zephyr[u]
(Super Jump)<ul type="square">[*] 3,13% Defense(Ranged), 1,56% Defense(Energy), 1,56% Defense(Negative)[*] 3,13% Defense(AoE), 1,56% Defense(Fire), 1,56% Defense(Cold)[*] Knockback Protection (Mag -4)[/list][u]Numina's Convalescence[u]
(Integration)<ul type="square">[*] 12% (0,67 HP/sec) Regeneration[*] 25,1 HP (1,87%) HitPoints[/list][u]Scirocco's Dervish[u]
(The Lotus Drops)<ul type="square">[*] 10% (0,56 HP/sec) Regeneration[*] 3,13% Resistance(Negative)[*] 9% Enhancement(Accuracy)[*] 3,13% Defense(AoE), 1,56% Defense(Fire), 1,56% Defense(Cold)[/list][u]Numina's Convalescence[u]
(Health)<ul type="square">[*] 12% (0,67 HP/sec) Regeneration[*] 25,1 HP (1,87%) HitPoints[/list][u]Mako's Bite[u]
(Soaring Dragon)<ul type="square">[*] MezResist(Immobilize) 3,3%[*] 20,1 HP (1,5%) HitPoints[*] 3% DamageBuff(All)[*] MezResist(Held) 3,3%[*] 3,75% Defense(Ranged), 1,88% Defense(Energy), 1,88% Defense(Negative)[/list][u]Doctored Wounds[u]
(Instant Healing)<ul type="square">[*] MezResist(Terrorized) 2,2%[*] 1,26% Resistance(Fire,Cold)[*] 4% Enhancement(Heal)[*] 5% Enhancement(RechargeTime)[/list][u]Scirocco's Dervish[u]
(Golden Dragonfly)<ul type="square">[*] 10% (0,56 HP/sec) Regeneration[*] 3,13% Resistance(Negative)[*] 9% Enhancement(Accuracy)[*] 3,13% Defense(AoE), 1,56% Defense(Fire), 1,56% Defense(Cold)[/list][u]Steadfast Protection[u]
(Tough)<ul type="square">[*] 3% Defense(All)[/list][u]Luck of the Gambler[u]
(Moment of Glory)<ul type="square">[*] 10% (0,56 HP/sec) Regeneration[*] 7,5% Enhancement(RechargeTime)[/list][u]Luck of the Gambler[u]
(Weave)<ul type="square">[*] 10% (0,56 HP/sec) Regeneration[*] 15,1 HP (1,12%) HitPoints[*] 9% Enhancement(Accuracy)[*] 7,5% Enhancement(RechargeTime)[/list][u]Gaussian's Synchronized Fire-Control[u]
(Focused Accuracy)<ul type="square">[*] 5% JumpSpeed, 5% JumpHeight, 5% FlySpeed, 5% RunSpeed[*] 25,1 HP (1,87%) HitPoints[*] 2,5% (0,04 End/sec) Recovery[*] 2,5% DamageBuff(All)[*] 2,5% Defense(Melee), 1,25% Defense(Lethal), 1,25% Defense(Smashing), 2,5% Defense(Ranged), 1,25% Defense(Energy), 1,25% Defense(Negative), 2,5% Defense(AoE), 1,25% Defense(Fire), 1,25% Defense(Cold)[/list][u]Thunderstrike[u]
(Laser Beam Eyes)<ul type="square">[*] 2% (0,03 End/sec) Recovery[*] 2,5% Defense(Energy,Negative), 1,25% Defense(Ranged)[/list]

I'd personally go hasten SS rather than CJ SJ. I think you are actually overslotting for KB. I get KBed once in a blue moon and i don't have any of those special anti-KB IO's or set bonuses. of course if it's a thematic choice then by all means.

other than that looks pretty solid.

Looks like a pretty good build, but without knowing what you intend to do with it (solo, PVE, PVP) it's hard to comment on any changes that might help you.

For example, I team a lot so would probably have skipped laser eye beams and torrent and gone with Flashing Steel and Hasten instead.

I would drop the Epic pool altogether for this build, unless it is part of your concept.

I'd slot the Gaussian's set into Build Up. The proc will fire off less often, but at least you'll be USING it instead of it firing off while standing at WW. Besides, since you have it 6 slotted, you don't have it for the proc anyway do you?

I'd throw a Steadfast Res/End into Tough as well as a Res/End from another set.

Also, Fox...he's not slotting those Zephyrs for KB protection, he's slotting them for the 3-slot AoE defense bonus. Can't say I'd do it any different there.

Other than the minor stuff I mentioned it looks pretty damn solid to me.