Well played. I think the PF call is good provided you are willing play aggressively. In other words, you need to play back with a lot less than the hand you have here. I think you have to be willing to play aggressively with just a flush or open-ended draw, and often when you've got a pair as well. You make it sound like he could be raising any two here, so there's a very good chance he'll have to fold to a push. If you aren't willing to put your stack in jeopardy with less than 15 outs, you should just fold pre-flop. But know that you are eventually going to have to play back at this guy with a marginal hand.