you've got to be prepared to bubble, if necessary. most people are gonna play really tight at or near the bubble, and you need to take advantage of it where possible. betting 3 bb's into an unopenned pot, hoping to steal, cause likely hood is, they'll call you only if they actually have something at the button, if they raise and you have crap, fold. but it'll be more profitable in the long run to abuse the bubble. and yeah, you'll lose some, but you'll also gain so much too