I would bid 2.5
♠ on this hand, since I have that bid available in several partnerships...
Without that call, I think there are some big advantages to making the underbid of 2
♠.
If we are only thinking about game, it seems like 2
♠ and 3
♠ are roughly equal. We will miss some games by bidding 2
♠ when partner has five trumps and a non-awful hand. We will get overboard to some bad games bidding 3
♠, usually when partner has four mediocre trumps and some club cards. I'm not really convinced that either call is much better than the other.
But for
slam bidding, 2
♠ consumes a lot less space and is likely to let us show our club shortage later in the bidding. On the other hand, 3
♠ cramps the auction quite a bit more and tends to describe a hand with more high card points (and better trumps). There are many sequences where partner will end up blasting keycard over 3
♠ (maybe after one round of cuebidding) and we have to figure out whether to basically force slam in order to show the void (having already slightly overbid our hand!) or conceal the void completely in order to own up to only one keycard. Either of these can be quite bad.
Adam W. Meyerson
a.k.a. Appeal Without Merit
1H-1S
2S-4S