[Vampyr]

LHO opens 1♥' dbl by pd, 1♠ on your right.

If your agreement are fairly simple, you will double with four spades and bid 2♠ with 5+. Should the same methods be used when it goes (1m)-X-(1M)? The hand that prompted this thread is one where RHO wasn't actually trying to pick off our suit; he actually had four spades. We didn't have agreements for this situation, and missed our spade game.

[steve2005]

I would think (1m)-X-(1♥) that X=4♠, 1♠=5+♠ & 2♥=4+♥
and (1m)-X-(1♠) that X=4♥, 2♥=5+♥ & 2♠=4+♠
More important to distinguish length in other major the one opponents have bid.

[wanoff]

steve2005, on 2015-September-11, 21:47, said:

I would think (1m)-X-(1♥) that X=4♠, 1♠=5+♠ & 2♥=4+♥
and (1m)-X-(1♠) that X=4♥, 2♥=5+♥ & 2♠=4+♠
More important to distinguish length in other major the one opponents have bid.

Wow, I've not heard that one before, and I'll probably stick with the standard method which at least keeps both majors in the frame from the outset.
To answer the OP, I can't see that it matters if the opening bid is 1m or 1♥. I would however say that (1m)- X - (1M) - 2M ought to be 5, limited and NF.

[nige1]

Vampyr, on 2015-September-11, 18:13, said:

LHO opens 1♥' dbl by pd, 1♠ on your right. If your agreement are fairly simple, you will double with four spades and bid 2♠ with 5+. Should the same methods be used when it goes (1m)-X-(1M)? The hand that prompted this thread is one where RHO wasn't actually trying to pick off our suit; he actually had four spades. We didn't have agreements for this situation, and missed our spade game.

IMO, Wanoff describes normal methods. I agree that (1B) Double (1R) Double
should show 4 Rs (RHO's suit); but I can't understand why it's necessary to bid 2R with 5+ Rs (when you can just double and then "rebid" R instead..