I am cutting very soft paper with thicknesses of 0.21 and 0.50mm each. The paper is chromatography paper and is designed to wick liquids, sort of like a paper towel with a little more substance. I have placed a mat of two 65# letter size papers and put a sacrificial 20# paper cover over the soft paper. The thickness setting is 3.5 for the 0.21 and 7 for the o.5 papers. I make two passes with tabs set to minimum and medium width. These are the best trial and error settings I can achieve. Is there anyone with experience who can provide better settings? The paper tends to slide and tear. The sacrificial paper cuts very nicely while the mat remains untouched.