barmar, on 2017-October-06, 10:15, said:
I agree that is relatively easy to find an attributable meaning to the auction without one of the calls, but I don't think Holmes and Poirot directing together would have guessed on this hand that 2NT was interpreted as Lebensohl. I don't know how you can give an attributable meaning to an insufficient bid if the auction was not misread but an IB still occurred. You are attributing a meaning to the IB in a different auction.
And I don't necessarily agree with gordontd: "my prediction is that it will be less problematic in practice than predicted, since the insufficient bid aspect has not changed significantly but has been explained better". The previous law 27B1b featured prominently in these pages with quite long threads, and even a relaxation of "same meaning" to "similar meaning". RR is regularly making insufficient bids and when he partners SB the latter will be keen to not be silenced. Vampyr asked: "What if neither the attributed meaning nor the "comparable" replacement call have anything to do with the person's hand?" SB would reply that it does not matter as RR's calls rarely have anything to do with his hand.