@.30/06 FTW
For my match guns I just run the Orange in PD and Standard, swapping the magwell on and off as needed (or sometimes I'm lazy and run it without the magwell, but they are fun). For Production Optics.Open I have a dedicated Shadow 2 OR that I swap the magwell on and off of the same as I do with the Orange.
For my practice guns I have 2 Shadow 2s that CZUB did up for me from the first run of frames they made, full in house custom shop fitting. I still did all my own springs and stuff once I got em though lol. One of those cracked and I got a new frame for it, which is now a dedicated 22 Shadow 2, and I had both those old frames milled to stop the crack from occurring (on the one that hadn't) and spreading on the other one. Both are around 150k through them each at least.
I still need to get a new Orange and another OR so I have a proper set of match/backup guns for them, as I use one of my original Arcore frame guns as my backup to the Orange. If all those break or burn up I have 11 Shadowmates to draw on.