Yes, that's me.
Apologies, I didn't mean that to come across so critically. I think you are correct that the best option is option 1. The second option would require changing the config file when playing games at different aspect ratios, which while doable would be a headache.
Now if only Demulshooter would accept joystick inputs, we could use wiimotes for virtually any gun game in 2 player. The only other option would be to get Touchmote's mouse mode to use raw output, which I saw a request for on the github tracker, but I haven't seen any progress on.