Cold/Rad Level 50 Build

My Cold/Rad defender is close to hitting 50 and I've been playing with her build and just wanted some opinions on if it looks okay. Right now I'm running on SOs and I am not impressed by damage output but feel I still contribute a lot to teams from buffs/debuffs.

Couple things I want to specifically ask about. Slotting on Neutrino Bolt and X-Ray Beam: Would it be better to leave them as is or do a more full IO set like Decimation to get a little bit more +recharge into the build? That would be 5 Decimations and the Achillees proc. Also, I have a Kismet in hover but do I really need the extra +tohit with tactics and defense debuffs?

Any recommendations on Incarnate slots would be great. So far I'm looking at spiritual for my Alpha. Anyway, here's the build. Thanks!

Hero Plan by Mids' Hero Designer 1.93
http://www.cohplanner.com/

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Level 50 Magic Defender
Primary Power Set: Cold Domination
Secondary Power Set: Radiation Blast
Power Pool: Flight
Power Pool: Teleportation
Power Pool: Leadership
Power Pool: Speed
Ancillary Pool: Dark Mastery

Hero Profile:
Level 1: Infrigidate -- AnWeak-Acc/Rchg(A), AnWeak-Acc/Rchg/EndRdx(13), UndDef-DefDeb/Rchg/EndRdx(15), UndDef-Rchg/EndRdx(37)
Level 1: Neutrino Bolt -- Thundr-Acc/Dmg(A), Thundr-Acc/Dmg/Rchg(3), Thundr-Acc/Dmg/EndRdx(7), LdyGrey-%Dam(37), ShldBrk-%Dam(45), Achilles-ResDeb%(50)
Level 2: X-Ray Beam -- Thundr-Acc/Dmg(A), Thundr-Acc/Dmg/Rchg(3), Thundr-Acc/Dmg/EndRdx(7), LdyGrey-%Dam(37), ShldBrk-%Dam(45), Achilles-ResDeb%(50)
Level 4: Irradiate -- Oblit-Acc/Rchg(A), Oblit-Acc/Dmg/Rchg(5), Oblit-Acc/Dmg/EndRdx/Rchg(5), Oblit-Dmg(34), Oblit-Dmg/Rchg(42), Achilles-ResDeb%(46)
Level 6: Ice Shield -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(9), LkGmblr-Def/EndRdx/Rchg(40)
Level 8: Glacial Shield -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(9), LkGmblr-Def/EndRdx/Rchg(40)
Level 10: Electron Haze -- Posi-Acc/Dmg(A), Posi-Acc/Dmg/EndRdx(11), Posi-Dmg/Rchg(11), Posi-Dmg/EndRdx(34), Posi-Dam%(42), FrcFbk-Rechg%(46)
Level 12: Arctic Fog -- S'fstPrt-ResDam/Def+(A), S'fstPrt-ResDam/EndRdx(13), LkGmblr-Rchg+(15), LkGmblr-Def/EndRdx(40)
Level 14: Hover -- Zephyr-Travel/EndRdx(A), Zephyr-Travel(17), Ksmt-ToHit+(39)
Level 16: Recall Friend -- Zephyr-Travel/EndRdx(A), Zephyr-Travel(17)
Level 18: Benumb -- Acc-I(A), Acc-I(19), RechRdx-I(19), RechRdx-I(31), RechRdx-I(43)
Level 20: Teleport -- Zephyr-Travel/EndRdx(A), Zephyr-Travel(21)
Level 22: Maneuvers -- LkGmblr-Rchg+(A), LkGmblr-Def/EndRdx(23), LkGmblr-Def/EndRdx/Rchg(23), LkGmblr-Def(50)
Level 24: Tactics -- HO:Cyto(A), HO:Cyto(25)
Level 26: Sleet -- UndDef-DefDeb/Rchg/EndRdx(A), UndDef-DefDeb/Rchg(27), UndDef-Rchg/EndRdx(27)
Level 28: Cosmic Burst -- Decim-Acc/Dmg(A), Decim-Acc/Dmg/Rchg(29), Decim-Acc/EndRdx/Rchg(29), Decim-Dmg/Rchg(34), Decim-Dmg/EndRdx(43)
Level 30: Hasten -- RechRdx-I(A), RechRdx-I(31), RechRdx-I(31)
Level 32: Heat Loss -- P'Shift-EndMod/Acc/Rchg(A), P'Shift-EndMod/Rchg(33), P'Shift-EndMod/Acc(33), TmpRdns-EndRdx/Rchg/Slow(33), P'ngTtl-EndRdx/Rchg/Slow(43), Efficacy-EndMod/Acc/Rchg(45)
Level 35: Neutron Bomb -- Posi-Acc/Dmg(A), Posi-Acc/Dmg/EndRdx(36), Posi-Dmg/Rchg(36), Posi-Dmg/EndRdx(36), Posi-Dam%(42), Achilles-ResDeb%(46)
Level 38: Frostwork -- Numna-Heal/Rchg(A), Numna-Heal/EndRdx(39), Numna-Heal(39)
Level 41: Oppressive Gloom -- Amaze-ToHitDeb%(A)
Level 44: Soul Transfer -- RechRdx-I(A)
Level 47: Soul Drain -- GSFC-Rchg/EndRdx(A), Sciroc-Acc/Rchg(48), Oblit-Acc/Rchg(48), AdjTgt-EndRdx/Rchg(48)
Level 49: Vengeance -- LkGmblr-Rchg+(A)
Level 50: Spiritual Radial Paragon
Level 0: Freedom Phalanx Reserve
Level 0: Portal Jockey
Level 0: Task Force Commander
Level 0: The Atlas Medallion
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Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 1: Vigilance
Level 2: Rest -- Empty(A)
Level 4: Ninja Run
Level 2: Swift -- Flight-I(A)
Level 2: Health -- Numna-Regen/Rcvry+(A), Numna-Heal(25)
Level 2: Hurdle -- Jump-I(A)
Level 2: Stamina -- EndMod-I(A), EndMod-I(21)

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