Is there an instructional video on how to get a balanced suspension?

I think I understand the basic principle, but when I go to apply it to my b4, the rear end keeps bouncing up and down the springs after I drop it from a 4inch test height. This is due to the extra weight out back right?

I currently have #2 pistons, green springs in back, brown up front, with silver rear springs as an option. I set the preload collars to the ride height I want.

Anyone have any thoughts?