WOw first I misread your hand and thought you had a5c. SO I'm like what is this guy thinking about. Like the way you playing it. I would lead with a similar amount on the turn. The BB's instacall kinda makes me think he hit his 9. That seems to be my experience. As far as making the call.. its a tough one in that it's so early and you'd hate to be wrong here and have him turn up 2 pair. I probably dump this. I don't think he has a 10 since he probably bets this on the flop. Maybe hes raising his kj on the turn? I would play a set this way..have you guys lead on the turn and raise it due to the draws out there now. I lay down and play on.. its so early. maybe you get lucky and the BB has a monster