I've got the XDM in .45. Love it. My match toy.
The Caspian is tuned completely to wad cutter loads by the USMC Pistol Team pistol-smith. I've never carried it and never will. The 1" extended Bomar front site doesn't do well in a holster.
I was just wondering if a weapon tuned for 230gr ball ammo is truly happy with lighter loads. Both wt and powder.
For EDC, I use a Glock 30SF. Like the Springfield, it eats everything I've put in it. Currently got a Black Hills product in the magazines.
Cheers,
Steve