Here's what I think I know (or have read) about setting sag: -- You want the sag between 100-105 mm -- You measure sag from the rear axle bolt to the bolt on the seat -- the rider must sit with full weight on the bike while a partner measures the distance -- sag is adjusted via tightening or loosening the rear shock spring. Is this accurate? I've never checked it and want to. Also, are the measuring points consistent for most dirtbikes? Because I would think different makes with different frame geometry might result in different recommended sags instead of the universal 100-105mm. Or are the differences minimal? any comments about the accuracy or inaccuracy of my data would be greatly appreciated. Thanks.