Like many, I'd like to see the poll. Wouldn't mind seeing South's hand either, for the "is passing 4
♠ a LA?".
I do notice that the OP doesn't claim there was a poll. That doesn't mean there wasn't one, self-serving memory being what it is. But if all the explanations of why "pass of 4
♠ is not Logical" and why "there's either no UI passed by the fast 5
♥ or 'this is a slam cue' doesn't make sense" came from the directors' minds, while I wouldn't be in "have you asked anyone who can play?" territory (IME, that's reserved for when the directors tell "me" that another call *is* logical, and not suggested by the UI), I might ask if they had polled any players and what did they think 5
♥ meant, having not seen 52 cards and the result?
I do like North's "Alert and query" - if it could be hearts, or good spades (or even diamonds) depending on the meaning of East's call (in his view), that's what the procedure says to do, if South didn't ask(*).
If South did ask, then "Spades" is correct (to North's memory of the agreement):
Quote
Calls that require Announcements must be immediately announced, even if the call would otherwise not be Alerted or if the Alert would be delayed.
To the "correct" agreement, it would be "Hearts", even if it is a Cuebid (or perhaps, despite the fact that it is a Cuebid), for the same reason.
Having said that, situations like North's belief are ones where I think it is imperative to ask as South, so that this situation does not come up. Because North now knows that South either knows (good, but frustrating if I don't), is assuming (bad), or doesn't care what 2NT means - and not asking might wake North up. (Having said that, South being sure that he is in the last category means that there is no need to ask - and actually a downside of asking. So I see his side too(**)).
I'm going to take the "instant call" with the "was told by West what he remembers seeing" (or, "was West") big piece of "self-serving testimony" salt; but I bet it was fast. This is a classic case of "unauthorized panic", and UP is always fast. That's why I want to see the poll. But if there was a poll, and "everyone" said "oh partner must have forgotten and thought he was transferring", then fine.
I see someone say "I'm bidding 6
♠ if told 3
♦ showed spades and 5
♥ was a control". Well, of course, that's obvious. That's not the poll, and I'd massively object if it was. North passed because "it's obvious we're off the rails", and there's UI saying "no, partner, I have hearts"; I want to hear if my poll people tell me "it's obvious he's got hearts and thought 3
♦ was a transfer" or whether they tell me "that has to be a cuebid for slam." If you tell the pollees what 5
♥ is, you're begging the question and it's an invalid poll. Note: once you decide that treating it as a cuebid is a LA, then if you're trying to figure out the adjusted score, then it's fine to say "5
♥ shows a control, no minor control" to see how many bid 6. But not before.
(*) Ran into one on Tuesday: I was playing Precision on the 1
♦-(2
♦)-3
♦ auction. Because *I knew* (and was almost certainly the only one at the table who did) that 2
♦ not Alerted could have any meaning, when asked about 3
♦ I had to say that it depended on the meaning of 2
♦. Of course, knowing that partner didn't ask, I could assume that what she *had* was an unusual vs unusual competitive raise, but if 2
♦ was Natural...
(**) I find this very interesting. After our weak NT, over double and 2
♣, we play the same system no matter the meaning of those calls (runout and systems on, respectively). But because the decision to pass could depend on the meaning of their call (I might be more interested in a "willing to play" pass depending on what Alerted meaning of double(**a) they're playing (setting up for their pull, or believing it's the best chance for a good score; I might be interested in finding out which of the many hands 2
♣ is and lebensohling around that instead of "systems on") I tend to ask. I do know that quite frequently the opponents are of different minds about their weak NT defence - so sometimes asking is a bad idea. Oh well.
(**a) More often than not, when I ask about the Alerted double, I get "penalty" or "equal or better" or something like that. Which, of course, is a "do NOT Alert" meaning. I guess I should be like the Precision people, call the Director, and be up in arms about UI passing or misinforming me or something?
When I go to sea, don't fear for me, Fear For The Storm -- Birdie and the Swansong (tSCoSI)