[RC-Monster Mike]

I use 7k in the front, 10K in the center and 1k in the rear on my truggy. It definately unloads to the front a bit, but also provides stable driving and unloads to the rear on braking. On a rough track, lighter oil is usually in order(our track is bumpy). On a high traction, smooth track, heavier oil will improve acceleration. Anything above 20k or so is too stiff for my liking in the center on a truggy. On a buggy, I don't like anything over about 7k in the center. To each their own, though.