[nige1]

straube, on 2017-November-21, 09:35, said:

Let's say partner has shown 4 or more hearts and could hold a longer minor, you hold 1-3-4-5 and you know that together you have at least 21 hcps. You haven't shown a minor yet and in fact partner doesn't know anything about your shape. Your rebid will limit you to 2 or sometimes 3 hcps.

1) Would you rather...
A) raise to 2H, staying low
B) bid 3C to show exactly 1-3-4-5, getting to the best strain

2) Would you rather
A) raise to 2H
B) bid 2N to show exactly 1-3-4-5

The difference of course with this last one is that you have the chance to play 2N on a misfit.

I have a third question but it's better to lock in your answers for the first two as it's prejudicial.
Let's say you prefer a 2H raise for one or both situations, would it be enough to change your mind
about not bidding 2H if your 2H raise would then always guarantee 4 hearts?
Btw, I'm not interested in rebids of 2m or other solutions to show this pattern. That's not really the question.
Thanks for any opinions

Agree with the foobar consensus:

• Given the binary choice, I would raise to 2♥. Especially at MPs, where the 2-level seems safer than the 2-level; and majors score more than minors. With a wider choice, I would rather do something else, e.g. rebid 1N or another suit.
• Ditto.
• If 2♥ is a 4-card raise, however, I would definitely opt for 3♣, 2N, or whatever; although I might also argue for the system to be changed in future.

[fromageGB]

A A Yes
If I have an agreement that 2♥ is always 4 then of course it changes my bid. But we have an explicit agreement that a 3-suiter raises on a 3 card suit as if it was 4, because of the value of immediate ruffing in the short trump hand.