Our auction went like this:
I think maybe if I start with 4♦, a cue in ♦, implicitly agreeing ♥s, then Norman can bid 4♠ next, which must imply a club control. Note that 3♠ in our methods is definitely a stopper ask for no trumps, although I think it must retrospectively become a cue-bid after I bid 4♦ - in which case Norman should probably still bid 4♠ over 4♦, as I must have shown a pretty serious slam try. However, I'm still not sure if we're getting to grand - I can count 3 tricks in ♦s, 5 in ♥s and 2 aces, so there need to be three more from somewhere. It's very likely that Norman can ruff at least one ♠ and set up at least one ♦, but I'm not sure I can find out enough to actually be able to count to 13.
At Ian Aitchison and John Donaldson's table, the auction was somewhat more unusual, however. I'm not actually able to enter it on the bridgebase handviewer. It started off sensibly enough:
However, Ian's choice as West in this situation was a double...
Apparently this is an "inadmissible bid", and basically the only penalty is that Ian has to find an admissible bid instead - with the caveat that his partner is barred from knowing that he has a take-out double of 3♠, which I guess means he doesn't know for sure about the spade shortage, or that Ian has any extras. Ian chose to bid 4♥, which I think probably isn't right, especially after his attempted take-out double, as slam doesn't look out of the question, and partner is pretty much barred from bidding on unless he has an absolute monster - I'd have tried 4♠, even if it does commit us to the 5 level. Added advantage is that it must show a hand that's something like take-out of ♠, meaning that partner no longer has any unauthorised information (I'm not sure if you're allowed to take that into account when making your bid?)