[jester710]

Actually if you've got absolutely zero info on the villain, I don't even mind a b/c line on 7th, just to see how he plays whatever he's got there. You're almost certainly giving a bet away with the call, unless he's the type that thinks jacks up is the nuts here (which is very useful info), but the info you get from it might make you a lot more down the line, especially if you see this guy around a lot.