Here is my setup for hardpack light dust.
35wt rear silver spring, stock piston 1 limiter, 2deg Losi XXX hub carrier and hinge pins and long camber link.
30wt front blue spring, stock piston 3 limiter, 30deg B4 castor blocks.
Diff is full of black grease, I have tried 1k silicone fluid and gave it to much posi, others are using 30-40wt shock fluid but i have not tried it.
1/2 oz on front skid plate
1/2 oz on either side of battery in front of chassis
1 1/2 oz in front of the trans
battery moved all the way back to the stops on the starp.
toying with grooving tires right now.