I've got large hands and my thumbs ends up touching the extended thumb safeties on a Commander just enough to trigger the safety while shooting. I like the safety on my Colt Wiley Clapp Commander, it's small like an original GI safety so I don't contact it but it's got a little more surface area and serrations. It looks like the Wilson Combat Retro Checkered Thumb Safety so I"m looking at that. The EGW GI thumb safety is only $54 but it's a little pedestrian compared to the Wilson. Anybody got suggestions? This is a for a Colt Combat Commander btw. Shame to have to change the gun as it's an awesome piece but I'm engaging the safety almost once a magazine.