I tried a couple of settings tonight. Cut a normal Hershey bar, fresh from the fridge, at 100/50 at .325" which included a sheet of cardboard under the chocolate.
I bet if I played around more I could dial it in better, but I ate the other half of the bar. A speed of 250 wouldn’t cut through at 75 power. I’m betting I could find a cleaner cut at somewhere between 150 and 200 though maybe around 75 power.
Anyway, it’s definitely doable. Just going to take some experimentation. Let us know what you come up with!