Well, I decided to go ahead with the 365. After renting & shooting it alongside the Glock 43, M&P and a couple of other compacts, it just seems to fit right in my hand.
I've got a holster on order from JX Tactical (their Fat Guy aiwb) to try. The factory holster, as I expected, it basically useless for me. I tried it in every conceivable position & it's just a print-o-matic everywhere.
I've got high hopes for the JX but, like a lot of folks mentioned, I'm sure I'll end up trying several before I settle on one.