[zasanya]

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The form of scoring was BAM 6-0 scale
EW were playing roman jump overcalls where on 1♥ 2 ♠would show ♠ and ♣ 5-5 less than opening hand. North's 4♥ showed at least 3 cards ♥ and invitational or better values.
Q.1 Is 4 ♠ a reasonable call?
Q.2 Should West now pull to 5♣ ?

[whereagles]

That depends on how much you trust partner lol. 4S seems ok.

[P_Marlowe]

well, the only issue with 4S is, that it may be based on 64 (or 65,
if 64 makes you shiver) instead of 74.
Given that, it can be quite hard for partner to bid (or to correct to) 5C
with 3 spades and 2 clubs.

With kind regards
Marlowe

[whereagles]

I think with 3-2 pard would always get back to clubs because he knows in spades you'd be ruffing in the long trumps hand. You can't possibly bid this way with less than a 6-4.

But that's my reasoning.. others might think different.

[gszes]

Your decision to begin with 2c rather than 1s should be a strong indicator
to your P that you most likely only have 4 spades when you bid 4s. This is
good since you have pretty closely defined your hand and p should readily
assume you have extra club length vs spades for your bidding. P should have
no difficulty pulling you from 4s to 5c with a 32 black suit holding and they
should also assume it is a poor idea to play 4s even if they have 31 in
the blacks. The only real downside of playing 4s is when p has 4 spades and
even a doubleton club since there is an entirely reasonable chance you will
be shortened in trumps and never be able to use your clubs.

Best is to just trust your partner to make critical judgement calls like
this and pass. If it does not work try to have a discussion about why you
would choose to bid 2c followed by 4s (vs x for ex over 4h).

[whereagles]

Well, I did saw partners coming up with 5 spades and a singleton club in similar auctions. But you really have to trust partner here. If he's unreliable, I'd pull to 5♣ in 0.02 secs.

[P_Marlowe]

 whereagles, on 2014-July-30, 06:59, said:

I think with 3-2 pard would always get back to clubs because he knows in spades you'd be ruffing in the long trumps hand. You can't possibly bid this way with less than a 6-4.

But that's my reasoning.. others might think different.

you have one trump more, but the higher level contract needs to play by 2 tricks better than the lower level
contract, and this is not certain.
In the end it comes down to partnership knowledge (an other word for trust), and that you are on the same
wavelength.

With kind regards
Marlowe

[whereagles]

 P_Marlowe, on 2014-July-30, 10:54, said:

you have one trump more, but the higher level contract needs to play by 2 tricks better than the lower level
contract, and this is not certain.

That is correct, but if spades happen to be stacked (quite likely), a 4-3 fit is not going play well. The 6-2 fit can easily play 1-2 tricks better, and pard can even have 7 clubs (as he does).