Stephen Tu, on 2018-November-25, 16:29, said:
Super-accepting on 3 is perhaps unsound, as partner can be broke, and with 8 cd fit less likely for the opps to have the shape to balance. Question is whether the extra times you get to game and make on are enough to compensate for 3s down one and 4s down 1. Or times opponents were going to balance and down 1 when your 3s is going down.
True, but I decided to take the plunge after reading an article which reckoned that even allowing partner to make a transfer when broke, those extra times pay off. Hard to say if it was right, it doesn't come up often and main partner is a bit conservative anyway. Obviously you look hard at hand and zone. Among the plusses, at MP you're more likely to find 3N+1 when others are in 4M.