Perhaps I misunderstood, but I assumed Mike was asking for suggestions as to how to handle these hands in his system. If the actual question was "I have a systemic way to bid 4414 13-counts. When I'm dealt a 4414 13-count, should I do what the system says, or something else?" then he already knows the answer.
MickyB said:
It feels wrong to describe a 4-4-1-4 as unbal with M+D
Maybe I was wrong. What question were you actually asking?
If your question was "Can you suggest a better way to handle 4414 shapes in my system?", then I am making two suggestions:
(a) With 11-13 4414, open 1
♦ and raise to 2M
(b) With 11-13 4414, open 1
♦ and raise to 2M unless you think you're too strong. Change the meaning of 1
♦-1M;2NT from "unbal with M+D" to "unbal with M+D, or 4414 and too strong to raise to 2M"
If your question was "I have a systemic way to bid 4414 13-counts. When I'm dealt a 4414 13-count, should I do what the system says, or something else?" then see above.