2019 SC running Geiser Progressive Front Coils that increase front end height ~ 2” and levels the truck with respect to the rear suspension fitted with +2 Deavers (+2 Deavers do not lift the rear, they replace oem leafs with vastly superior ride quality but match OEM ride height in back) So both front and rear of truck are 42” high measured from floor through center line of wheel to highest point in the fender flare. Running 35” tires and have noticed a lot of shimmy above 100mph, very unnerving. Alignment toe not a concern. Looking to get an understanding for camber and caster are you guys dialing in to give optimal steering control at high speed. Truck is good up to 100 but over 100 I get shimmy. No vibration and steering is straight until the shimmy comes, feels like slipping on ice. All comments welcomed.