Gave a good fondling to the XDM45 at the NRA Conv. the texture on the grip was almost too rough for me, and felt more like skateboard tape, great for gloves, but have good calloused hands.
As was previously posted, the grip angle was different pistol IMHO felt too grip heavy, probably more prominent with a full mag.
I know its a dependable, reliable, accurate pistol. A "go to" pistol for sure, just not my particular cup of tea.
My G21 grip is a little too big,and has these darn finger grooves, but just simply works every time.
My M+P full-size 40, was mine as soon as I picked it up.
My S&W full size 1911, with traditional wood slab grips, just fits.
Even my FN9, has a natural grip angle, and feels balanced and very stable to shoot.
Just my .02 cents.