With respect to this, the resolution on a set of Try-All snail cams is around 0.4mm (less than 0.3mm in the case of Monty, and infinite if you use smooth cams), so it makes very little difference to the geo of the bike. Once the chain has settled in (2 or 3 clicks max) you very rarely need to adjust it, maybe one click a month. I am very sensitive to changes in geometry, setup etc and I cannot notice this amount of change. To ensure correct brake setup you just add one click/the same amount of tension to each cam (left and right) when you re-tension the chain and the wheel/rotor is still aligned as previously.