FWIW, this is why a lot of dual/multi scope setups that are controlled by a single PC can have different makes of focusers, rotators, and other ASCOM-controlled gear - it's often because of this ASCOM driver issue. If you want to get around that limitation and have the gear be homogenous, you need multiple PCs to run the gear or experiment with running your imaging inside separate VMs on a single PC. Either way, they're kludgy, annoying, and expensive workarounds. So yes the next best thing is to bribe/convince your accessory vendor of choice to implement multiple copies of their ASCOM drivers.
Don’t you get around this at least partially by using ASCOM remote? We used that with the quad RASA setup to control the focusers but I will have to ask what they are using now.
Edited by 555aaa, 04 November 2021 - 10:08 AM.