Jack_V

I think the problem is that part of the bid is a psyche. If I have a bid that conveys one large thing and one small thing, and the large thing is true, and the small thing is false, and I choose this bid deliberately knowing I could have avoided it, then that distortion is a psyche, and if it turns out to matter and someone fields it, that's subject to all the usual penalties. But if you think the small thing is unlikely to matter, I think it's misleading to describe the whole bid as a psyche, because the overall distortion is small. Of course, it still matters whether the intent of the bidder was to deliberately make a misdescribing bid, or if he/she genuinely thought "I only have strength for one rebid, better to show spades+hearts even if I conceal my heart length".