1S-2H
3H
I see 3 possible meanings for the next 2 available spade bids:
1. Confirming a double-fit
2. Control-showing cuebid
3. Exclusion Keycard
Q1. What is it best to use 3S for?
Q2. Should 4S be EKC here, or should EKC not ever be used in partners main suit? (Both partner and I agree it probably should be RKC but we have nervous feelings that we're not considering something.)