Molybdenum Forcing Pass System: S ---- N P --- 1♣ (opening, not yet GF) 1♥ --- 2♣ (15-18 any, specifically not GF but could be invitational with clubs) 2♥ --- 2NT (4+ hearts, invite with balanced hand) 3♦ --- 3♥ (5-5 in red suits or 5-4 with accepting invite, 3 hearts) 4♥ --- P (signoff) My system is weird... -_- Oh, didn't notice that east will bid one spade. Then S ---- N P --- 1♣ (1♠) (explained above) dbl (2♠)--- 3♣ (4+ hearts, 4+ clubs/ 8+ points) 3♦ --- 3♥ (5-4 in red suits or better and usually 13+, 3 hearts and 8-9 points) 4♥ --- P (signoff)