Hi If you use 1NT : 2NT as invitational with hearts and 1N : 2S as invitational without a major (or various other hands) 1N : 2C 2S : 2N can be the relay (you cant be invitational with hearts) Using this and 2H over a 2D reply means there is room for finding all shapes including 5332 major & 2-2-5/4 but not 6322. Obviously you loose wriggle Stayman. With 4S/5h transfer to hearts, With 5S/4H you can bid 2S (weak) over 2D. 4-4-4-1 are the problem hands. D/ 1N : 2C 2D : 2H 2S = longest suit is clubs 2N = 4/4 minors. Relay for doublelton 3C = 5332 dmds Relay for doublelton 3D = 2-2-5-4 3H = 3-3-3-4 8+ QP 3S = 3-3-3-4 7 QP 3N = 3-3-3-4 6 QP After 2S (clubs). Relay with 2N with same responses. 1N : 2C 2H : 2S 2N = 4 spades as wella s 4 hearts. Relay for doubleton. 3C = 5332/ Relay for doublelton 3D = 4 clubs as well as 4 hearts. Relay for doublelton 3H = 2-4-4-3 3S = 3-4-4-2 3N = 3-4-3-3 etc.