Ok I been playing with a PVP Setup and it works great
Talents are
1.Subterfuge, to get Cheap Shot, Garrote and sometimes a Ambush in
2.Combat readiness
3.Cheat Death
It does not lock up on me but let me know what you think
#showtooltip Mutilate
/castsequence [stealth] reset=target Cheap Shot,Garrote,Ambush
/cast [mod] Slice and Dice;
/castsequence [nostealth,combat]reset=5 Mutilate, Slice and Dice, null
/castsequence [nostealth,combat]reset=0.3 0,0,0,Mutilate
/castsequence [nostealth,combat]reset=0.3 0,0,Kidney Shot
/castsequence [nostealth,combat]reset=0.3 0,Dispatch
/castsequence [nostealth,combat]reset=target/15 Mutilate,Rupture,Mutilate,Envenom,Envenom
/cast [combat]Shadow Blades
/use [combat]Shiv
/cast [combat]Evasion
/cast [combat]Combat Readiness
/use [combat] 13
/use [combat] 14
/cast [nostealth,nocombat]Stealth
/startattack