Nabooba, on 2017-June-18, 18:37, said:
Opposite my posted hand with a weakish 3 5 5 0 or similar responder may well pass 1S, as many here, (not me I hasten to add as I play this sequence as forcing), play it as nf. Do you like your trump fit?
Almost every bid, regardless of how sensible it is, can be shown to get a bad result with the proper construction. For example if partner opens 1NT (15-17) and you have Jxx, xx, AJxx, KQxx, you would bid 3NT, I would bid 3NT, everybody would bid 3NT (assuming Puppet Stayman isn't being used or isn't chosen.)
However, give the opener AKQx, Ax, Qxx, JTxx and it's pretty clear that 3NT is not a great contract, but 4S is. So someone could advocate for using Stayman on my responding hand citing this construction as evidence. They would be wrong, of course, and it feels like what you are doing here.
You may or may not have a valid point, but when your examples are the worst possible layout for a particular bid, and can be easily pointed out to be exactly that, you tend to lose credibility. You have to show that your suggested action works out better on more normal layouts.
In Problem 6, I survived the 2H bid that you call dreadful despite partner having one of the worst holdings - a void and a hand not suited to an obvious run back to 3C. However, partner saved me by assuming I would know exactly what she meant because IMO it's the only thing she could mean with her 2S bid, and we got to the top partscore in diamonds on a layout in which the Bulletin stated that nobody could get to diamonds on such a sadistic setup.
Of course that is quite a construction, I admit, but I get to add that to all the times that opener has two or three hearts, which is a lot of the time, I also get to add in time times that partner is 3-1-4-5 and had to rebid a weakish club suit (of course I have the advantage of knowing my partner isn't rebidding 1NT on this hand, nor is she opening 1D. The odds change slightly if your partner might do either of those.) 2H might be better on those occasions where partner has six weakish clubs and a singleton heart honor. And, of course, the 2H bid breaks even when partner has an awful dummy for 2H but knows that 3C rates to play better, and can actually take 9 tricks. Note that my weak heart suit is a bonus in these situations; normally going to 3C will be a disaster when the strong hearts are stranded, but instead I am offering partner a
♠A and a
♦J10, which is a lot more than she can expect.