FingerFood

I need some help making the final decisions on my Fire/Kin farming build. My goal is to have capped smashing and lethal defense (this build does) and get as much +recharge as I can. I plan to farm 51-52 bosses. I have posted my build below:

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

Click this DataLink to open the build!

Blaze It (Farm): Level 50 Mutation Controller
Primary Power Set: Fire Control
Secondary Power Set: Kinetics
Power Pool: Fitness
Power Pool: Leaping
Power Pool: Speed
Power Pool: Fighting
Ancillary Pool: Stone Mastery

Hero Profile:
Level 1: Char -- BasGaze-Acc/Hold(A), BasGaze-Acc/Rchg(3), BasGaze-Rchg/Hold(3), BasGaze-Acc/EndRdx/Rchg/Hold(5)
Level 1: Transfusion -- Nictus-Heal/HP/Regen/Rchg(A), Nictus-Acc/Heal(7), Nictus-Heal(7), Nictus-%Dam(33)
Level 2: Fire Cages -- Enf'dOp-Acc/Immob/Rchg(A), Enf'dOp-EndRdx/Immob(5), Enf'dOp-Immob/Rng(9), Enf'dOp-Acc/Immob(11), Enf'dOp-Acc/Rchg(11), Enf'dOp-Acc/EndRdx(15)
Level 4: Siphon Power -- RechRdx-I(A)
Level 6: Hurdle -- Jump-I(A)
Level 8: Combat Jumping -- LkGmblr-Rchg+(A), Ksmt-ToHit+(9)
Level 10: Siphon Speed -- RechRdx-I(A), RechRdx-I(13)
Level 12: Flashfire -- Stpfy-Acc/Rchg(A), RechRdx-I(13), Stpfy-EndRdx/Stun(19), Stpfy-Acc/EndRdx(21), Stpfy-Stun/Rng(21), Stpfy-Acc/Stun/Rchg(23)
Level 14: Smoke -- ToHitDeb-I(A), Acc-I(15)
Level 16: Hot Feet -- TmpRdns-Acc/Slow(A), TmpRdns-Dmg/Slow(17), TmpRdns-Acc/EndRdx(17), TmpRdns-EndRdx/Rchg/Slow(25), TmpRdns-Acc/Dmg/Slow(27), EndRdx-I(27)
Level 18: Cinders -- BasGaze-Acc/Hold(A), Lock-Acc/Hold(19), Lock-Acc/Rchg(23), BasGaze-Acc/Rchg(31), BasGaze-Rchg/Hold(31), BasGaze-Acc/EndRdx/Rchg/Hold(31)
Level 20: Hasten -- RechRdx-I(A), RechRdx-I(29), RechRdx-I(36)
Level 22: Health -- Numna-Regen/Rcvry+(A), Mrcl-Rcvry+(33), RgnTis-Regen+(34), Numna-Heal(45)
Level 24: Stamina -- P'Shift-End%(A), P'Shift-EndMod(25), P'Shift-EndMod/Rchg(33), P'Shift-EndMod/Acc(34)
Level 26: Kick -- KntkC'bat-Acc/Dmg(A), KntkC'bat-Dmg/EndRdx(45), KntkC'bat-Dmg/Rchg(45), KntkC'bat-Dmg/EndRdx/Rchg(46)
Level 28: Tough -- S'fstPrt-ResDam/Def+(A), S'fstPrt-ResKB(29)
Level 30: Weave -- LkGmblr-Def(A), LkGmblr-Rchg+(36), LkGmblr-Def/EndRdx(36), LkGmblr-EndRdx/Rchg(37)
Level 32: Fire Imps -- ExRmnt-+Res(Pets)(A), ExRmnt-Acc/Dmg/Rchg(34), ExRmnt-Acc/Rchg(39), ExRmnt-Acc/Dmg(39)
Level 35: Transference -- Efficacy-Acc/Rchg(A), Efficacy-EndMod(37), Efficacy-EndMod/Acc(37), Efficacy-EndMod/Acc/Rchg(40), Efficacy-EndMod/Rchg(40), Efficacy-EndMod/EndRdx(42)
Level 38: Fulcrum Shift -- Acc-I(A), RechRdx-I(39), RechRdx-I(40), Acc-I(43)
Level 41: Fissure -- Stpfy-Acc/Stun/Rchg(A), FrcFbk-Rechg%(42), Stpfy-Acc/Rchg(42), Stpfy-Stun/Rng(43), Stpfy-Acc/EndRdx(43), Stpfy-EndRdx/Stun(46)
Level 44: Seismic Smash -- KntkC'bat-Acc/Dmg(A), EoCur-Acc/Rchg(46), KntkC'bat-Dmg/EndRdx(48), KntkC'bat-Dmg/Rchg(48), KntkC'bat-Dmg/EndRdx/Rchg(50)
Level 47: Rock Armor -- LkGmblr-Rchg+(A), LkGmblr-Def(48), LkGmblr-Def/EndRdx(50), LkGmblr-EndRdx/Rchg(50)
Level 49: Inertial Reduction -- Jump-I(A)
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Level 1: Brawl -- Empty(A)
Level 1: Sprint -- Empty(A)
Level 2: Rest -- Empty(A)
Level 1: Containment

These are my questions:

1. You will probably notice there is no dmg enhancements. I plan not to slot for damage because I assume I will be at the damage cap nearly all the time between Fulcrum Shift and Siphon Power. Is this a good plan?

2. I did not take Speed Boost because I read that the recharge buff part does not work on imps. Is this true? Do I need Speed Boost if I plan to solo farm only?

3. I only put 4 slots in Fire Imps. I noticed most people 6 slot it. Am I losing that much 4 slotting it?

4. I elected to get smoke for even more defense, but with capped Smashing/Lethal is this neccesary?

5. In transfusion I got the Touch of Nictus damage proc. I did this because I am under the impression that damage procs are affected by buffs such as fulcrum shift. Is this correct?

6. How much accuracy do I need to hit 50/51/52s ? I cannot find this info anywhere so I have no idea exactly how much accuracy I need.

7. Due to my Defense cap I plan to play with Tough toggeled off. Will I still get the steadfast protection bonuses?

Thanks for any and all help you can provide.