I do full mesh, then back off a little bit, tighten bolts, then while wiggling the pulleys as much as I can to get a best/worst case scenario, check if there’s any place they get stuck / don’t turn as freely. If so, it’s too tight, and I loosen the mesh further. If the play between moving the pulleys is more than 2mm, I assume I’ve gone too loose.
No clue how anyone can jam a paper between gears for this lol
Also