East has a hand that wants to try for game opposite a simple 2♠ raise. The only trial bid available to him is a double. Partner has a minimum and so bids 3♠ to sign off.
My question is what kind of hands will now bid 4♠ as East? Also assuming 4♣ and 4♦ immediately after North's 3♥ would be cue bids agreeing hearts(?) what is the meaning of the same bids following a game try double after which partner signs off.
I feel that this is an area with very little discussion or consensus.