That's what I do. I'm clearly wrong about the fingering charts though (I learned from an ancient DOS program, so I can't check that one). I have a picture of

That's what I do. I'm clearly wrong about the fingering charts though (I learned from an ancient DOS program, so I can't check that one). I have a picture of a symmetrical one in my head; C is the equivalent of M, so it seems like they should use the same finger.