haven't tried that one, but hogues fits and feels awesome that's what I have on my FS9, too bad they don't make it for the 45, and it installs like a factory palmswell.
Bought one of each and it's not going to help. Pachmayer moves around on the grip and Hogue makes it way too big in my hand. I like the finger grooves. I guess that's why I like Glocks.