test with sneak attack fast blade vs lv1 bunnies (this will, obviously, test for TP bonus only). tell me your total STR, total DEX, and the damage of your sword, and at what TP you fire the WS (100% is best). depending on the damage you get, you'll see if you're getting a) no bonus at all, b) hagun-like TP bonus (100%TP), c) some other TP bonus (10%, 50%, etc), or d) a flat fTP bonus. will have to check at varying TP% distinguish b/w (d) and (b) or (c). i'd be surprised if this test hasn't already been done on BG, but i'm not interested enough to check.
nk i wish to be the red comet.