I would be inclined to fire away but not too big, maybe somwhere close to the pot. Even if a heart drops I do believe you need to bet again. Chances are your opp does not have a flush and you have the better hand. In that case, you need to make anyone pay that wants to stay in. You should get play from any one with AJ, 2-pair, lower trips, KK, QQ, AA, etc.