I was going to change to thinner grips on a 1911 with an aluminum frame. It looks like the factory bushings are too tall for the thinner grips. It appears the bushings may be staked and didn't want to come out when I tried a to unscrew them. I don't want to damage the frame, so I was considering trying to either dremel or file the bushing down a little bit. Has anyone tried something like this before, they would'nt need lot taken off.