[EricW]

Well, to make a flush pay AND find out where you're at. By checking, if he's on a flush draw, you're giving him a free card and also by checking, you have no clue where you're at. The only thing that sucks about this hand is that it's unraised preflop which means there could be a lot of junk out there (ie a set)so it's really dangerous. However, I can't see you wishing for a more favorable turn situation where the flush draw isn't complete.