"Anybody have and shoot a 10mm?"
Yes, two. DW Razorback, mostly for the visual aesthetics of the gorgeous piece, and G29, because the 10mm cartridge as loaded by Underwood to 775 ft-lbs of muzzle energy has significantly more kinetic muzzle energy than the .45 Super.
The smallest .45 autos are more easily concealable than the smallest 10mm autos, because the .45, .45 +P and the .45 Super cartridges are so so very very cold loaded. There is no 10mm Shield. No Micro 10. No 3" Defender 10mm. Because the 10mm is loaded too hot for small, lightweight pistols.