They must have been running a 2.5t motor or something

Setting mesh isn't bad after you've don't it a couple times. The cam holds position really well so set screw backed out. Position cam with the two screws snug, adjust and tighten up. Too tight or loose? Back the two screws out just enough to move the cam, rotate can and tighten back up. Repeat till right. Tighten up set screw once your happy with it.
It only take me one or two stabs at it now.

I haven't had a dnf with those gears, I replaced mine about a month or so ago as they were getting a little noisy but no teeth were missing or butchered.