I've been playing this trick on my Kama as a Flowwing monk for years now. (It was my first PFS character, and he just hit 11 this year. I generally only bring him out for special occasions). I don't have the sheet on me but his bonus to trip (and reposition) is easily in the 30's. It is ridiculously effective until it isnt. Flying, incorporeal, Huge, swarms. Lots of things just turn the whole schtick off. Fortunately when that happens there is still flurry of blows with 6 attacks. =)