atse

I think you have a good point here. Different materials have different friction coefficients which would effect adjustments. Even if you have a flawless working erector spring system, if the detent ring is not perfectly machined ( I hope they are not cast or stamped ) or is not hard enough to take repeated adjusting, then you won't get reliable tracking.

All of this is just speculation on my part, as, I am just an old man on a fixed income, like Pappy (but probably older) and I cannot afford to tear apart one of each to find out for sure what their erectors are made of. But I sure would like to. RJ