akwoo, on 2015-June-28, 10:17, said:
Two questions:
1) How strong can partner be, and how many spades can partner have? Would partner have raised to 2♠ on 3 card support and any queen or 4 card support (not 4333) and 0hcp? Could partner have passed a bad 7hcp hand?
2) How competent are opps? How likely is it that 2♥ was an underbid? Will North know what to do with various strong hands with and without heart support?
If opponents are good and partner can't have spades or strength, I bid 4♣. If opponents might mess up and partner can't have spades, I bid 3♣. If partner can have spades, I bid 3♠.
1) Partner has fewer than 3 spades, and fewer than 7 HCP. Weak with spade support, he would have raised; strong with spade support, 2NT; strong without spade support, redouble
2) Competent opps; 2H is on target