The rig uses Win10. CamControl was the only thing that saved us from the dreaded logitech issue. However, I'm trying to use 21 cams and CamControl crashes after you plug in somewhere around 4-6 cameras. The rig is able to have all 21 cameras plugged in at the same time but, because we can only control 4ish of them we had to hot swap all the camera cables and use CamControl to clean up the image during the stream.
For TPF preparation I spent most of yesterday trying something that seems to at least eliminate the need to hot swap the cables so we wont have pauses and dropped frames from swapping cables. I plugged in all 21 cameras and found the one camera I could control inside of xsplit, labeled it 21 with some masking tape and a pen and repeated the process until I had labeled all of the cameras 21-1. Plugged them back in 1-21 changing the settings on each as I went and was able to set each of the cameras. This process seemed to work even after a restart so whatever xsplit/logitech is using for high camera wins is persistent at least. The downside is you only get one shot at the camera settings so if lighting conditions change or you make a mistake you're stuck..
I did end up finding the guy that wrote the camcontrol software. I'm going to see if he's interested in fixing the crashing bug and supporting more cameras.