[kgr]

From previous posts of me, below forum majority understanding:

(2♥)-P-(3♥)-DBL
(P)-4♠-(P)-?
> 5♥=♠-fit, slam try with ♥-control
> 5♠=asks ♥-control for slam

1♣-(3♠)-DBL-(P)
?
> 4NT=Quantitative

Additional questions; I added my reasoning, do you agree with it?:
1♣-(3♠)-DBL-(P)
?
> 4♠=♥-fit and slam interest. Does not promise or deny a ♠-control?

1♣-(3♠)-DBL-(P)
4NT-(P)-?
> 5♣=4c♣, forcing
> 5♦=4c♥, 4c♦, forcing
> 5♥=5c♥, forcing
> 5♠=??
> 5NT=??
> 6♣=5c♣
> 6♦=4c♥, 5c♦
> 6♥=6c♥
Do you agree agree that any bid after 4NT quantitative should force to slam?

[ahydra]

For that last one I'd not be so sure that the X of 3S promises 4 hearts. You've no space left - what is partner to do with GF values but the wrong shape?

Additionally, as responder I'd like to be able to play in 5C. I'd agree that the others are forcing to slam though - I'd prefer "source of tricks" after a quantitative 4NT, rather than just showing a suit there (with the exception of 5S and possibly 5NT, which sound like grand slam tries).

ahydra