[JohnnyHumongous]

One time like a year ago I was in a hand where I raised AK and was called in a couple places. Flop came Kxx, checked to me, I bet and big blind checkraised, and I called. Turn came a blank, big blind checked, I bet and he checkraised. River came a K. Big blind checked, I bet and he checkraised. He had K4 or whatever for a flopped 2 pair which filled on the river. This was probably as close to optimal as a trifecta-attempt can be in my experience.