Do you run. FMJ, Hollow points, Soft points, even maybe some incendiary. Do you lace rounds in your mags? For example. 2 hollow points then 2 FMJs then 2 soft points?
You have to remember that you are responsible for every single round that comes out of your gun. You don't wan to use a type of ammo that has a good chance of over penetrating, and hitting an innocent bystander that was behind the Bad Guy/threat.
I've never understood the "alternating rounds" thing in any gun. I'm certainly not counting "Two hollows, now two FMJs (better not shoot through that wall), OK, back to hollows....". I just count up to a reload.
For me: hollow points for self defense, FMJ for range fun.
Before I carry a specific hollow point in a carry gun I run at least 50 - 100 rounds through the weapon for function test. Throughout the year I will occasionally run a box of my carry ammo through it here and there as well.
Hollow point, now I have alternated types of hollow points for a specific reason of the amount penetration and size of wound channel. Of course this was based on test in ballistic gelatine with heavy clothing.