I was using a single-flute up upcut at 75ipm/12k and it was lifting the sheet on me. They were mostly clean, except from some fluff in the middle spans.
I have some 2mm single downflutes coming tues to dial in. I should have bought this -
https://www.amazon.com/gp/product/B07KKL1ZSN/ref=crt_ewc_title_srh_1