Never tried that mp. I do have a Rico Graftonite mp for my bari sax and it sounds and plays pretty good. I can’t really attest to other saxes though. The bari has a distinct sound that cuts through anything. This mp works well with the bari sax for sure.
I used to play one of those Rico’s on bari and loved it, but I don’t know about it for alto. I remember it had a very bright tone so it worked good for what I wanted out of the bari.