re: GLOCK 10mm

That's a reliable weapon ....... For "animal defense." You're plenty good with the G19 and G23 for "people SD."

I'd steer clear of the ported//compensated barrel. Poor choice for almost any defensive (animal, or people) weapon.

I'd steer clear of the compact (G29). Gonna be harder to control. That extra 1/2" is important.

You already have the .40 in the G23. Shoot the 10 mm in the G20 (ammo will be a little pricey).