I have a Fusion Firearms custom built 1911 10mm 6-inch long slide. Fusion Firearms is run by Bob Serva, the owner of Dan Wesson Firearms when they introduced their 1911 models. It is a work of art and shoots great and with 45ACP recoil with the 6-inch slide weight.
I’ve never fired a 10 but if I decide to get a 1911, it will be a 10. Great caliber to carry around in a vest or as a sidearm if you are off the beaten path.