[umdpoker]

semi-bluffs are pretty important, especially if you play an otherwise tight-abc style. its a good way of mixing up your play without getting money in with no chance at winning if called. semi-bluffing is obviously better in lp, because you are more likely to take down the pot. also, it helps build the pot when you are in good position. doing it from ep is tougher, as you wil often have to fold the turn unimproved if somebody in lp calls. if you hit, it does improve your chancesof stacking your opponent though.