Looks all pretty good.
Personally, I'd get Divine Avalanche a lot sooner, don't bother with the fighting pool, passives are much better.
Practised Brawler should only ever need 2 Recharges. Quickness + Swift + Sprint is pretty fast as it is, so I'd save a slot in Swift.
I also would choose Sting of the Wasp over Gambler's Cut.
All your choice though 
With the defense changes in i7 I've looking forward to my Katana/SR Scrapper who's lvl 30 atm. Heres my proposed build any hints advice would be greatly appreciated. Also just wondered if it is worth swapping the pasives for the fighting pool.
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Exported from Ver: 1.7.6.0 of the CoH_CoV Character Builder - (http://sherksilver.coldfront.net/index.php)
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Name: TsubaXIII
Level: 50
Archetype: Scrapper
Primary: Katana
Secondary: Super Reflexes
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01) --> Gambler's Cut==> Acc(1) Dmg(42) Dmg(42) Dmg(42) Rechg(43) DefDeBuf(43)
01) --> Focused Fighting==> DefBuf(1) DefBuf(3) DefBuf(3) EndRdx(9) EndRdx(13)
02) --> Flashing Steel==> Acc(2) Acc(15) Dmg(15) Dmg(21) Dmg(29) Rechg(29)
04) --> Focused Senses==> DefBuf(4) DefBuf(5) DefBuf(5) EndRdx(7) EndRdx(13)
06) --> Agile==> DefBuf(6) DefBuf(7) DefBuf(9)
08) --> Swift==> Run(8) Run(48)
10) --> Practiced Brawler==> Jump(10) Rechg(11) EndRdx(11)
12) --> Combat Jumping==> DefBuf(12)
14) --> Super Jump==> Empty(14)
16) --> Build Up==> Rechg(16) Rechg(17) Rechg(17)
18) --> The Lotus Drops==> Acc(18) Acc(19) Dmg(19) Dmg(21) Dmg(31) Rechg(31)
20) --> Quickness==> Run(20)
22) --> Health==> Heal(22) Heal(23) Heal(23)
24) --> Stamina==> EndMod(24) EndMod(25) EndMod(25)
26) --> Soaring Dragon==> Acc(26) Dmg(27) Dmg(27) Dmg(31) Rechg(34) Rechg(36)
28) --> Lucky==> DefBuf(28) DefBuf(37) DefBuf(40)
30) --> Divine Avalanche==> Acc(30) Acc(43) DefBuf(45) DefBuf(45) Rechg(45) Rechg(46)
32) --> Golden Dragonfly==> Acc(32) Dmg(33) Dmg(33) Dmg(33) Rechg(34) Rechg(34)
35) --> Evasion==> DefBuf(35) DefBuf(36) DefBuf(36) EndRdx(37) EndRdx(37)
38) --> Elude==> DefBuf(38) DefBuf(39) DefBuf(39) Rechg(39) Rechg(40) Rechg(40)
41) --> Dodge==> DefBuf(41) DefBuf(48) DefBuf(48)
44) --> Focused Accuracy==> EndRdx(44) EndRdx(46) EndRdx(46)
47) --> Aid Other==> Heal(47)
49) --> Aid Self==> Heal(49) Heal(50) Heal(50) IntRdx(50)
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01) --> Sprint==> Empty(1)
01) --> Brawl==> Empty(1)
01) --> Critical Hit==> Empty(1)
02) --> Rest==> Empty(2)
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thePhilosopher Martial Arts/Regen/Fire Scrapper
theRegulator Empathy/Energy/Soul Defender
Total Inertia Ice Blast/Kinetics/Psy Corruptor
Total Inferno Ice Blast/Thermal/Leviathan Corruptor