Thanks to those who replied so far.
The NT opening issue was more of a secondary curiosity, but deserves its space.
My main interest was how others see this hand as justifying (or not) a deviation from the classic 3
♣ rebid.
mikeh, on 2021-May-26, 06:50, said:
However, with A10 in hearts and Qxx in spades, I definitely want the lead coming to me plus partner may not be able to bid 3N over 3C.
Picture Axx Jxx QJxxx Jx (admittedly, a hand on which he can bid 3N over 3C but the right siding argument is what I’m illustrating)
This is close to my own thinking, however I concede that it is not easy to picture that many hands where partner cannot bid 3N over 3C, of which some where it might still be the right side, or swings and roundabouts.
I hope a few more people will vote here.