I am in the "boring club" that carries the same gun 365 days a year. I see no real reason to "rotate" guns. IMHO that can lead to confusion, unfamiliarity and delays in deploying a firearm in a stressful and important time of need.
I personally carry an original size Sig P365. It weighs 17.6 ounces not loaded and about 21 ounces loaded with 11 rounds of 124 grain 9mm HP's. It is also small enough to easily pocket carry, has excellent sights, is extremely accurate, reliable and is capable of handling the very successful 9mm +P ammo. It is fast to reload and I now carry it about 50% of the time in my pocket with a DeSantis Nemesis holster and 50% of the time in a Kramer Horsehide OWB holster.
I am quite familiar with it, I always know what I am carrying, exactly how it operates, how many rounds it holds, where it shoots and exactly what to expect. What sense would it make to me to mix that up with rotating CCW firearms?? Because of it's light weight and small size, it can be carried during any weather conditions and to me, along with similar guns like the Hellcat, FN Reflex, etc. it never requires rotations and shoots the very competent and effective 9mm.
If one wants to strap on a new gun of the week, I would suggest doing that at the Range but see no practical reason to do it "for real" when CCW. Rotating carry guns may feel kind of cool, but may cause you a major issue if and when you ever need to use it. Call me boring!