I think you played it conservatively. You can control the table by betting agressively. I say trust your gut. If you think the other guy has a better hand, then folding your cowboys was the right thing to do. If you think he is still on a draw, then try to bet him out of the pot. Doyle Brunson said, "The key to No Limit Hold'em is to make the other man decide whether or not to push in all his chips."