They're down at least 2, I think (if my partner has a mild slam try), so if they're vul. and I'm not I'd rather double them. Any other I think I want to play 5♥. Edit: I hadn't read what 3♣ meant. It's horrible to play like that and now I'm not even sure of what's going on, does my pd have a slam invitation when I'm 7-9 or 12-14? I'm inclining towards X now which could be our only plus at this point.