The whole idea of a "carry rotation" is bad.
Hey, it's Monday, grrr . . . I'll just grab my Glock.
Tuesday, maybe the j-frame.
Wednesday, hump day, gotta have the 1911.
Thursday, think I'll try the new P365.
Friday, yippee, my 3" .357 needs to party.
And then the Jackboys show up, and you grab the pistole de jour, and do what? Maybe a "what do I have in my hand and how do I work it," which is a "404 not found," and you die.
No: I carry my full size M&P9 almost all the time, and the similar P365 only when I can't conceal the big guy. I don't have to wonder what's there when I reach for a gun, I know what's there.
This is street survival, not your girlfriend choosing which handbag to grab on the way out the door.
Your life, your choice.