And as far as casting order, Buff has it about right.
Double Blast | Mug | Thieving Essence | Desperate Thrust | Will/Change of Engagement | Dispatch/Debil/Rake (Double Up)
Strongarm | Bum Rush | Shank/Backstab | Puncture (reset Strongarm?) | Shred

After that, whatever. TSwipe is nice to fit in there if you can't kill a mob easily. So is Gouge and Deft Disarm. But they are all meh.

O! and try and fit a Boot Dagger/Rob or Shadow Slip/Rob in as often as you can. It would be our best parsing CA if only it weren't a clusterfuck to use and require stealth (compare it to Bum Rush o.O)