M Grind

Hmmmm.... actually hadn't noticed that until reading your post... great question! Not sure why they 54 would be available in D but not M

I was bummed about that too, thinking of going s grind

I have use the S grind on my 54 since SM6 and now on my 56 SM7 really love it for my game & style of play around the greens on the courses I play in Kansas. Really a versatile club I think.

DM

As they put out a couple of new grind/loft options, they will take out a couple either from under utilization or overlap for utility with other grinds. There are practical limits to the number of standard options they can offer.

I play a 52F & 56 M. I was considering going to a 54 M & 58 D. Since there is no 54 M, I need to rethink what to do.

Consider going with a 54 D and a 58 M.
12 degree bounce on the D and 8 on the M should give you plenty of versatility.