There is a huge benefit to carrying the same thing day in and day out. That said, I've doen that with 1911 platform pistols (for years) and with Glock pistols (for years) and am now "back" to the 1911's. Myself, I would not be concerned about differentiating between the two. I've carried each long enough and shot and handled each enough that the muscle memory and tactile familiarity are there for each. I wouldn't have to "think" about which I had. To me, the two are not even similar. When it gets to my hand, it is "recognized" and the correct muscle memory is there. But there is no substitute for rounds down range, time spent with the weapon and time spent carrying the weapon.
My suggeston for now is to try to stick with one or the other as much as practicable for large blocks of time (a month, two, or more). This will help build the familiarity that will help to make the distinction between the two a non issue.
JMHO, YMMV.