ORIGINAL: Revolauncher

You need heavier springs to help against bottoming out. The Revo springs fit as do the Jato. RunRevo (front)greensprings up front and Revo (rear) white springs in the rear with 40 wt. oil. Mine has jumped a lot better ever since. A little stiff, but for big airit is great. Laying down your shock angle helps too, inner holes up top, outer holes on the arms, but you lose ride height unless you crankdown the preload collars on the shocks.