>>2052236
I finished already. I decided on 3.5mm on the bottom row and 3mm on the top row, and everything fits together very nicely.

>>2051779

Both packs of bearing balls combined was lower cost than just a tool to remove the freewheel. I don't know anything about standard practices, where you say there should be a preload on the bearing balls and that you can tighten it to the point where it locks. In my case, I had no extra shims to remove to decrease the gap, so a bigger ball made sense to me. I wanted to keep a gap, with the gap size approaching zero.