Would you make this move?

[jskinn04]

Only three hands that you could be worried about (A-5), (4-4), and (Q-Q). His flop bet was could have been a continuation bet with any overpair, high card hand, or hand with a flush draw. When he called your raise, he probably had either an overpair or a flush draw. With a turn card that didn't complete the flush, your bet seems to make a lot of sense.

I don't think you can really bet much less because you're probably committed to calling the rest of your stack on the river if you don't put it in yourself now. Your opponent might have put you on a hand like (7-7) through (9-9) so he would have called a fairly large bet with two overcards and a flush draw. You can't let him call less than your full stack on 4th street b/c he will fold on the river if he misses his draw. You can't live in fear that a turn card made trips for your opponent.