Yea, IDK what factors did you have to plug in because suspension geometry would have a big effect.

I think the front is naturally softer when approaching an obstacle then the rear because of the caster built into the arms. My rear end was planted running yellow fronts and blue rears but the front end would bounce over a single grain of sand and the rear would bottom out. Now I have been running yellow fronts with green fronts in the rear and it is level but I have sacrificed too much rear traction, I am going to start back at square 1 with my setup and try to find something that works for me, its good now but I cant be too aggressive or else I loose the rear end all over the place.