cherdano, on 2017-September-13, 16:27, said:
I think bidding 7♥ is right. Down 5 is what we'd expect opposite a typical preempt, and that's a good save against their small slam. So the whole logic of "Even if 7♣ makes, you are booked for a bad score anyway" doesn't convince me.
I think that this is probably the best reason for saving. You will beat all the pairs who let them play in 6, whether or not 7 is making.