An adjunct to Stayman and Jacoby Transfers, where, after a 2D reply to Stayman, responder holding 5/4 or 6/4 in the majors, jumps to 3 of his 4-card major, allowing opener to become declarer in responder's long major. After a 2NT opening, Stayman followed by 3H or 3S can be used similarly.

Opener can raise responder's long major with 3 trumps or rebid 3NT with only 2. In the latter case, with 6 of his long major, responder can bid 4 of the suit immediately below his 6-card major as a further transfer.