mikestar13, on 2015-February-11, 03:48, said:
Maybe if the strong hand possibilities plug a major system hole it could be wortwhile, but even then it is quite dangerous to lump several different strong possibilities into the bid. I can imagine a multi where if strong, opener has a balanced 25 or about. I can also imagine a multi where if strong, it is GF with primary diamonds. I find it hard to wrap my mind around how to unwind things if it could be either of those, or 22-ish balanced, or GF with primary clubs, or just short of GF with a primary major.
I used to play weak 2M, strong balanced, 20+ 4441 any, it allows you to play strict 2 point ranges in your notrump rebids and rebid 2N showing a precise 2 point range up to 27 (and 3N up to 33) if you use kokish over 2♣ as well. The strong 2 in a minor we found ineffective, but the strong 4441 removed hands that were a problem in our system even if they are rare.