Is your hair as short as mine (what’s left of it! ). I wear Quattro’s, too, and my hair is cut on the side with #2 clippers, on the top with #4 (and I did it all by myself - my wife refused to become a barber!). I call it “The COVID-19 LOOK,” because I decided it was safer during the pandemic to cut it myself (if wife refuses) rather than go to a hair salon or barbershop.
Perhaps one difference is that I wear glasses. Do you? The glasses probably help keep the HA bodies away from my hair. I don’t hear any hair scratching sounds or have any sounds when chewing other than through bone conduction. The link is a “VIEW ONLY” link to a recent selfie I took and posted on my MS OneDrive account. It may take several seconds for the full high-resolution of the photo to download and the photo will look blurry 'til then.