Thought I'd add some info.
Tried decals from A-Zone. I dont use the the part that goes on the backstrap. Just the wrap around that covers both sides. These have held up! No movement at all.
Funny story, I have two buddies with talon grips and I fired both thier guns this last weekend. Neither held up after gripping the guns once. I told them "looks like neither of you grip hard enough"