VixTD, on 2017-February-20, 13:48, said:
North (a very good player) maintained that anyone who wanted to ask about the strength of partner's trumps would do so quickly.
If that is true then the slow 5
♠ suggests that he might be asking for something different, and hence it suggests passing. So 6
♠ is the ethical thing to do.
It is of course possible that the explanation that 5
♠ asks for trump quality is self-serving. But even so, there is no reason to think that the BIT makes it more likely that it is asking for trump quality.
Result stands. If they appeal I think it is without merit.
The world would be such a happy place, if only everyone played Acol :) --- TramTicket