The OP did a good job of advertising for Challis bushings, but I find your post dumb. Yes, I have Challis bushings on my 1911s. Yes, I use Cool Hand and Guun thin grips on some of my 1911s. Yes, people with small hands, like my wife, benefit from the thinner grips.
How about, is it dumb to put extended mag release buttons on 1911s with thin grips, or for that matter, regular grips? Perhaps, and perhaps not, I put a
Hayes Customs mag release button on my Ruger SR1911 Commander. I have yet to accidentally eject a mag going through drills. This is my shout-out to Hayes Customs!
This Ruger is my "Learning How to Gunsmith" gun, so I know it is ugly. When I got this Ruger, it was a truck gun and bore all the scratches you would expect from a truck gun, but at $350 I couldn't turn it down. I had to notch the grip for the release to go down far enough to release the mag. I installed a EGW barrel bushing, EGW Beavertail and blended, added EGW Thumb Safety, and tried my hand at undercutting the trigger guard and checkering. I have learned alot from my mistakes.
Ok, I just hi-jacked the thread, my apologies.