Arch/MM; am I missing anything?

Here's my proposed Arch/MM Blaster build for high level PvP. If there are any glaring problems or things you'd change, please let me know. Thanks.

PS: The empty slot in Blazing Arrow is for the PvP dmg proc whose name escapes me atm.

Hero Plan by Mids' Hero Designer 1.401
http://www.cohplanner.com/

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

Venom PvP: Level 50 Magic Blaster
Primary Power Set: Archery
Secondary Power Set: Mental Manipulation
Power Pool: Fitness
Power Pool: Leaping
Power Pool: Speed
Power Pool: Leadership
Ancillary Pool: Cold Mastery

Hero Profile:
Level 1: Snap Shot -- Dev'n-Acc/Dmg(A), Dev'n-Dmg/Rchg(3), Dev'n-Dmg/EndRdx(3), Dev'n-Acc/Dmg/Rchg(5)
Level 1: Subdual -- Dev'n-Acc/Dmg(A), Dev'n-Dmg/EndRdx(5), Dev'n-Dmg/Rchg(7), Dev'n-Acc/Dmg/Rchg(29)
Level 2: Aimed Shot -- Dev'n-Acc/Dmg(A), Dev'n-Dmg/EndRdx(9), Dev'n-Dmg/Rchg(11), Dev'n-Acc/Dmg/Rchg(11), Decim-Build%(50)
Level 4: Telekinetic Thrust -- KinCrsh-Acc/KB(A), KinCrsh-Dmg/KB(7), KinCrsh-Rechg/EndRdx(9), KinCrsh-Acc/Dmg/KB(13), KinCrsh-Rchg/KB(23), KinCrsh-Dmg/EndRdx/KB(25)
Level 6: Blazing Arrow -- Apoc-Dmg/Rchg(A), Apoc-Acc/Dmg/Rchg(13), Apoc-Dmg(15), Apoc-Acc/Rchg(15), Apoc-Dam%(17), Empty(17)
Level 8: Aim -- GSFC-ToHit(A), GSFC-ToHit/Rchg(19), GSFC-ToHit/Rchg/EndRdx(19), GSFC-Rchg/EndRdx(21), GSFC-ToHit/EndRdx(21), AdjTgt-Rchg(37)
Level 10: Hurdle -- Jump-I(A)
Level 12: Combat Jumping -- LkGmblr-Rchg+(A), Krma-ResKB(23)
Level 14: Super Jump -- Zephyr-ResKB(A)
Level 16: Concentration -- AdjTgt-ToHit(A), AdjTgt-ToHit/Rchg(25), AdjTgt-ToHit/EndRdx/Rchg(27), AdjTgt-EndRdx/Rchg(27), AdjTgt-Rchg(29)
Level 18: Health -- Mrcl-Rcvry+(A)
Level 20: Stamina -- P'Shift-EndMod(A), P'Shift-EndMod/Rchg(31), P'Shift-EndMod/Acc/Rchg(31), P'Shift-End%(31), P'Shift-EndMod/Acc(33)
Level 22: Drain Psyche -- P'Shift-EndMod(A), P'Shift-EndMod/Rchg(33), P'Shift-EndMod/Acc/Rchg(34), P'Shift-Acc/Rchg(34), P'Shift-EndMod/Acc(34), Efficacy-Acc/Rchg(46)
Level 24: Hasten -- RechRdx-I(A), RechRdx-I(33), RechRdx-I(36)
Level 26: Stunning Shot -- Dev'n-Acc/Dmg(A), Dev'n-Dmg/EndRdx(36), Dev'n-Dmg/Rchg(36), Dev'n-Acc/Dmg/Rchg(37)
Level 28: Super Speed -- Zephyr-ResKB(A)
Level 30: Assault -- EndRdx-I(A)
Level 32: Tactics -- GSFC-ToHit(A), GSFC-ToHit/EndRdx(37), GSFC-Build%(39), GSFC-ToHit/Rchg/EndRdx(39), GSFC-Rchg/EndRdx(39)
Level 35: Ranged Shot -- Mantic-Dmg/EndRdx/Rchg(A), Mantic-Acc/Dmg(40), Mantic-Dmg/EndRdx(40), Mantic-Acc/ActRdx/Rng(40), Mantic-Dmg/ActRdx/Rchg(42)
Level 38: Vengeance -- LkGmblr-Rchg+(A), RedFtn-Def(42), RedFtn-Def/EndRdx(42), RedFtn-Def/Rchg(43), Krma-ResKB(43), RedFtn-Def/EndRdx/Rchg(43)
Level 41: Snow Storm -- EndRdx-I(A), EndRdx-I(45)
Level 44: Hoarfrost -- Dct'dW-Rchg(A), Dct'dW-Heal(45), Dct'dW-EndRdx/Rchg(45), Dct'dW-Heal/Rchg(46), Dct'dW-Heal/EndRdx/Rchg(46)
Level 47: Hibernate -- Dct'dW-Rchg(A), Dct'dW-Heal(48), Dct'dW-EndRdx/Rchg(48), Dct'dW-Heal/Rchg(48), Dct'dW-Heal/EndRdx/Rchg(50)
Level 49: Frozen Armor -- LkGmblr-Rchg+(A), Krma-ResKB(50)
------------
Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Defiance
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[u]Set Bonus Totals:[u]<ul type="square">[*]33% DamageBuff(Smashing)[*]33% DamageBuff(Lethal)[*]33% DamageBuff(Fire)[*]33% DamageBuff(Cold)[*]33% DamageBuff(Energy)[*]33% DamageBuff(Negative)[*]33% DamageBuff(Toxic)[*]33% DamageBuff(Psionic)[*]0.94% Defense(Energy)[*]0.94% Defense(Negative)[*]1.88% Defense(Ranged)[*]62.5% Enhancement(RechargeTime)[*]9% Enhancement(Accuracy)[*]8% Enhancement(Heal)[*]20% FlySpeed[*]234.9 HP (19.5%) HitPoints[*]20% JumpHeight[*]20% JumpSpeed[*]Knockback (Mag -23)[*]Knockup (Mag -23)[*]MezResist(Immobilize) 2.2%[*]MezResist(Terrorized) 4.4%[*]10% (0.17 End/sec) Recovery[*]82% (4.13 HP/sec) Regeneration[*]2.5% Resistance(Smashing)[*]3.78% Resistance(Fire)[*]3.78% Resistance(Cold)[*]1.26% Resistance(Energy)[*]1.26% Resistance(Negative)[*]23% RunSpeed[/list]