Quietest gears? Yukon? Strange? Motive? Richmond?

I would think cheaper brands may not have the best tolerances and be more prone to having minor imperfections that may cause noise. I remember Cass telling me that cheaper brands sometimes are tougher to get a perfect pattern with and that with those you sometimes have to settle on an "acceptable" pattern instead instead of an "ideal" one. Still, nothing wrong with them though. I've only ever set up Richmond gears and none of them ever made noise.