I like to play Transfer Walsh not only with a 15/17 1NT opening, but with a 2♦ opener showing 18/20 as well (alla Mexican),including most 5332 as balanced. That way, 1♣ openings shows 12/14 balanced or 11+ unbalanced. Then after transfer response, opener bids are: * completes the transfer at one level with 11/15, 3 card support, * 1nt or 2♣ with 11/15 no 3 card support, according distribution. *2♦ artificial showing 16+ and exactly 3 card support, * 2 OM, 2NT, 3♣ shows strong hands without support * 2M, 3M, 4M, splinters, shows 4 card support, according strength. We also play 1♠ responde to 1♣ as denying 4+ card majors, showing eihter 6/9 balanced, 6/12 one suited minor or 10/12 two suited minors. Opener is expected to bid 1nt or 2♣ with at most 15 points or other bid with 16+ 1NT over 1♣ is exactly 10/11 balanced, no majors, and 1♣-2♣ is forcing game without majors (16+ if balanced)