Water/Rad Build Critique

[predador]

Hello everyone, this is my first Sentinel and I could use some ideas on it's build, I do have some experience with Water Blast but Radiation Armor and Sentinels itself are completely new to me.

This is the build i came up with, would you make any changes? I did some initial testing and seems to be lacking some single target damage as it is, problem is I don't want to sacrifice too much defenses, i don't like the idea of glass cannons even on blasters, and resistances alone won't keep me alive.

Hero Plan by Mids' Hero Designer 1.962
http://www.cohplanner.com/

Click this DataLink to open the build!

Level 50 Technology Sentinel
Primary Power Set: Water Blast
Secondary Power Set: Radiation Armor
Power Pool: Speed
Power Pool: Leaping
Power Pool: Leadership
Power Pool: Fighting
Ancillary Pool: Psionic Mastery

Hero Profile:
Level 1: Aqua Bolt -- SprSntWar-Acc/Dmg(A), SprSntWar-Dmg/Rchg(3), SprSntWar-Acc/Dmg/Rchg(3), SprSntWar-Acc/Dmg/EndRdx(5), SprSntWar-Rchg/+Absorb(5), SprSntWar-Acc/Dmg/EndRdx/Rchg(48)
Level 1: Alpha Barrier -- UnbGrd-ResDam(A), UnbGrd-ResDam/EndRdx(7), UnbGrd-ResDam/EndRdx/Rchg(7), UnbGrd-Max HP%(9), GldArm-3defTpProc(9)
Level 2: Water Burst -- Rgn-Dmg(A), Rgn-Dmg/Rchg(11), Rgn-Acc/Rchg(11), Rgn-Acc/Dmg/Rchg(13), Rgn-Dmg/EndRdx(27), FrcFdb-Rechg%(27)
Level 4: Gamma Boost -- PrfShf-End%(A)
Level 6: Proton Armor -- RctArm-ResDam/EndRdx(A), RctArm-ResDam(29), RctArm-ResDam/Rchg(29), RctArm-ResDam/EndRdx/Rchg(31)
Level 8: Tidal Forces -- RechRdx-I(A), GssSynFr--Build%(31)
Level 10: Fallout Shelter -- StdPrt-ResDam/Def+(A), RctArm-ResDam/EndRdx(48), RctArm-ResDam(50), RctArm-ResDam/Rchg(50), RctArm-ResDam/EndRdx/Rchg(50)
Level 12: Hasten -- RechRdx-I(A), RechRdx-I(13)
Level 14: Whirlpool -- SprFrzBls-Acc/Dmg(A), SprFrzBls-Dmg/EndRdx(15), SprFrzBls-Acc/Dmg/EndRdx(15), SprFrzBls-Acc/Dmg/Rchg(17), SprFrzBls-Dmg/EndRdx/Acc/Rchg(17), SprFrzBls-Rchg/ImmobProc(19)
Level 16: Super Speed -- BlsoftheZ-Travel(A), BlsoftheZ-Travel/EndRdx(19)
Level 18: Proton Therapy -- Pnc-Heal/EndRedux(A), Pnc-EndRdx/Rchg(21), Pnc-Heal/Rchg(21), Pnc-Heal/EndRedux/Rchg(23), Pnc-Heal(23)
Level 20: Water Jet -- SprWntBit-Acc/Dmg(A), SprWntBit-Dmg/Rchg(31), SprWntBit-Acc/Dmg/EndRdx(33), SprWntBit-Acc/Dmg/Rchg(33), SprWntBit-Dmg/EndRdx/Acc/Rchg(33), SprWntBit-Rchg/SlowProc(34)
Level 22: Particle Acceleration -- Run-I(A)
Level 24: Combat Jumping -- LucoftheG-Def/Rchg+(A), ShlWal-ResDam/Re TP(25), Ksm-ToHit+(25)
Level 26: Maneuvers -- LucoftheG-Def/Rchg+(A), LucoftheG-Def(39), LucoftheG-Def/EndRdx(40)
Level 28: Particle Shielding -- Pnc-Heal/EndRedux(A), Pnc-EndRdx/Rchg(40), Pnc-Heal/Rchg(40), Pnc-Heal/EndRedux/Rchg(42), Pnc-Heal(42)
Level 30: Boxing -- KntCmb-Acc/Dmg(A), KntCmb-Dmg/EndRdx(43), KntCmb-Dmg/Rchg(43), KntCmb-Dmg/EndRdx/Rchg(46)
Level 32: Geyser -- SprOppStr-Acc/Dmg(A), SprOppStr-Dmg/Rchg(34), SprOppStr-Acc/Dmg/Rchg(34), SprOppStr-Acc/Dmg/EndRdx(37), SprOppStr-Acc/Dmg/EndRdx/Rchg(37), SprOppStr-Rchg/+Opportunity(37)
Level 35: Tough -- RctArm-ResDam/EndRdx(A), RctArm-ResDam(36), RctArm-ResDam/Rchg(36), RctArm-ResDam/EndRdx/Rchg(36)
Level 38: Meltdown -- RechRdx-I(A), RechRdx-I(48)
Level 41: Weave -- LucoftheG-Def/Rchg+(A), LucoftheG-Def(42), LucoftheG-Def/EndRdx(43)
Level 44: Mind Probe -- SprBlsCol-Acc/Dmg(A), SprBlsCol-Dmg/EndRdx(45), SprBlsCol-Acc/Dmg/EndRdx(45), SprBlsCol-Acc/Dmg/Rchg(45), SprBlsCol-Dmg/EndRdx/Acc/Rchg(46), SprBlsCol-Rchg/HoldProc(46)
Level 47: Assault -- EndRdx-I(A)
Level 49: Vengeance -- LucoftheG-Def/Rchg+(A)
Level 1: Brawl -- Empty(A)
Level 1: Opportunity 
Level 1: Prestige Power Dash -- Empty(A)
Level 1: Prestige Power Slide -- Empty(A)
Level 1: Prestige Power Quick -- Empty(A)
Level 1: Prestige Power Rush -- Empty(A)
Level 1: Prestige Power Surge -- Empty(A)
Level 1: Sprint -- Clr-Stlth(A)
Level 2: Rest -- Empty(A)
Level 4: Ninja Run 
Level 2: Swift -- Run-I(A)
Level 2: Health -- Pnc-Heal/+End(A), Mrc-Rcvry+(39), NmnCnv-Regen/Rcvry+(39)
Level 2: Hurdle -- Jump-I(A)
Level 2: Stamina -- PrfShf-End%(A)
Level 50: Agility Core Paragon 
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[Sovera]

On my own water/rad posted a bit below I tried KO Blow from the shark school to help with ST damage, you could try that. It hits like a truck.