I like overloading the 2♠ as a range ask/transfer to 3♣ as described here. Opener responds 2NT if he wouldn't accept an invitation or 3♣ if he would. You lose the intermediate 2NT Super Accept of normal 4-suit transfers, but that occurs far less frequently than the invitational ask when Responder isn't interested in a major fit. I think it's more useful than using 2♠ as Minor Suit Stayman as well as it's much more likely to want to invite than to look for minor suit fits. It also has the minimizes the need for 4NT Quantitative. 2♠ Range Ask/Transfer to 3♣ 2NT Transfer to 3♦. Opener may Super Accept with 3♣ 3♣ Puppet Stayman 3♦ 5-5 minors game force 3♥ 3=1-5-4 game force 3♠ 1=3-5-4 game force The advantages of this use of 2♠ instead of 2♣ ... 2NT are: Opener doesn't disclose information to opponents.Allows Responder to more fully describe hand with game/slam interest and strong clubs.Can stop at 3NT with some Quantitative slam tries.Occurs more frequently than Responder's weak hand with long clubs.Responder's 2♣ Stayman guarantees at least 1 4-card major. The only time Responder would bid 2♣ without a 4-card major would be when playing South African Texas, and the 4♣ bid is a transfer to 4♥, not Gerber. The disadvantages are: You lose the 2♠ 2NT Super Accept in clubs.You lose the ability to have Opener play 3♣ when Responder is weak and Opener responds 2NT to 2♠. This doesn't bother me much as I frequently play weak (12-14) or baby (10-12) opening 1NT using the same responses.