[crashwhips]

Standard, I'm pretty much always jamming it all in when I flop a set + flush draw. He could have a hand that you are ahead of but has lots of outs (i.e. top two plus straight draw, straight draw + higher flush draw) so you want to get the money in before he can draw out on you or before a scare card can come and kill your action. Also, bare top two will often get it in with you on this flop at these stakes.