I get away with just changing damping settings front and rear, but I'm not track riding. Trails and dirt with the 21/18 and street and twisties with the 17's. I use the stock settings for the TE630 for the dirt which has all the compression diaper out and just a little rebound damping in the rear. For the street I use more rebound damping front and rear as well as turning up the slow speed compression in the rear significantly and adding some high speed too. I use the Same springs and preload.