Follow up to my first post:
Colt Delta Elite: bought it first, didn't "need" anything has fired ~450 rounds HP without fail, cost about $1,100 "limited edition" Ionbond slide.
Ruger: least expensive, "needed" a new plunger tube spring cause factory overkinked original causing mushy thumb safety, and attributed to slide lock open with rounds left in mag at about 80 rounds fired, easily fixed with new plunger tube spring. additional ~350 rounds HP since.
Kimber: "needed" a slight detent on slide stop so it wouldn't lock open with two rounds left, happening before 70 rounds fired, easily fixed by me, zero problem after detent, same mags and ammo, after correction has fired another ~350 rounds HP without fail. About $850 total - Gunbroker.
I have been carrying the Kimber, it doesn't need to fire another 150 rounds of "break-in" to prove reliability to me, 350 rounds of hollow point without incident is sufficient.
My two main handloads (not reloads) accounting for majority of the HP ammo fired are:
10mm Handload 180 Nosler @ 1,228 fps / 603# KE
10mm Handload Nosler 150 JHP @ 1,402 fps / 655# KE
Underwood loads the same Nosler bullets a bit faster, 180 @ 1,250 fps and the 150 @ 1,500 fps