Not sure this post will help a lot, but will give more options at least. Here is the scheme i used to play in response to 1C (balanced or unbalanced with C): - 1D/H: transfer - 1S : NO 4 card major, 6+ hcp, either: a) balanced 6+H (not willing to bid NT first if 11+ hcp) b) 11+hcp, unbalanced 6D (inverted minor raise in D, no side 4 cards) c) 9-10Hcp unbalanced with C (too light for inverted minor raise and too strong for preempt) d) weak unbalanced with D - 1NT : 4H and 4S, 6-10 hcp - 2C : Inverted minor raise in C - 2D : 11+hcp with 5D and 4C - 2H : 0-6 hcp with 5H and 5S - 2S : 7-10 hcp with 5H and 5S - 2/3NT : 11-12/13+ hcp, balanced with both majors kept, willing to get the lead in a NT contract - 3C : 5-8 hcp, unbalanced 5+C - 3D/H/S : GF, slam looking 6+C, Splinter Doesn't solve the loaded 1S response but letting the invite+ balanced responder without major to choose to receive the opening lead or not is VERY useful. The 1NT response (4H+4S: 6-10 hcp), although very accurate hence seldom has the advantage of "selling" the hand in one bid when weak so when competitive bidding mostly happens. Also it inferes that after transfering with 1D and not competing afterwards denies the other major. Although i thought that the 2H/S bids were misused and could have been more effeciently used, it appeared that they were both ways efficient: pre-emptive or informative for the strong partner.