I found a small issue in the experimental version, in game settings Scaling isnt set to "Default" by default but is 16:9 Correction, which for Wiis set to 4:3 makes the screen look off and doesnt match the other gx emulators
There is another thing aswell which isnt particular to the experimental version, but the SNES Mouse always seems restricted on screeen in snes9xgx with both wiimote and GameCube controller, it would be good if the SNES Mouse could move as freely across the screen as the Justifier and Superscope controls
Thank your for testing, the 16:9 correction is the default setting also in the current stable. But I understand what you mean I also noticed that in both the experimental as the stable version (4.3.9). After you change it once its saved to the settings.xml so it only occurs the first time correct?
Regarding the snes mouse I would suggest to open an issue for that here:
https://github.com/dborth/snes9xgx/issues