Its not settings for the GF but on my 30wt the settings are 100% speed and 35% power.
PPI is around 500 which is half of the max
Takes off the layer in one pass…
Alcohol can still be used if there is any tinge of color left…rub it down good (I use cotten cosmetic pads, then wipe off with soft cloth before it dries…( work fast…lol)