Use SNES9XGX new save sytem with care...

I was playing around with it and found this.
If you have renamed your old save file to "Auto" and you load a different save file, the new save file will overwrite the previous "Auto" file.
I made sure to back up everything prior to screwing around wit it but this has the potential to wipe your save files if you don't use it with care.

Know than when you load up a new file you will lose your current one unless you save it as a new one first.

Enjoy responsibly :-)

Or you can turn off the auto loading or saving!

Indeed!
Or if you just want to use one save file as before, then rename the one you have or load it the first time and don't ever worry about it again.
But if you want to mess around with it, then take not lose your Super Mario Kart file in which you spent so much time beating the cheap AI in Star Cup 150cc
: ))