for 2hander you don't need to do something that sophisticated; example, 6 hit build; enumarate all possibilities of attack and double attack sequences leading to 100TP, and calculate their probabilities, then average: I did it here for example:
http://www.bluegartr.com/forum/showt...=90728&page=22
post 651, with an exact formula. I've got a similar formula for 5 hit builds, and for 7 hit build with love halleberd. this method is impossible for, say, mnk (or thf), because you've got a 15 hit build minimum ( depends on tp returns from ws), and you can have up to 7 attacks per round (faiths baghnaks), so I had to use random walk techniques to get a result, but its just simpler to do a program simulation and emulate , say, one million attack rounds, and you'll get an correct estimate up to teh 3rd digit with that.