No irreversible damage
The cheap milsurp plastic grips on Beater the utility blaster cracked, right across the panel, through the upper screw hole. Both panels.
A cast-aside 6' slab of 1/4" Lexan was looking at me from the corner of the garage, like the Cheetos cheetah: "you know you want to do it."
I hacked out two pieces about the size of M1911 grip panels, and started rasping away anything that looked like it didn't belong there.
The WECSOG grip panels aren't done. They are fitted to the frame, with the countersinking and the relief for the detent plunger doodad, and the outline. But the contouring is only begun.
When it is to the desired contour, it will be stippled for texture.