Pete, I am not sure about the shock oil, I changed mine out before I hit the track to 1k wt diff oil. The diff's have grease from the factory, heavy in front and light amount of grease in the rear diff.
Some racers are starting off with 50k/10k front/rear in the diffs. The exact ratio will be depend on the track's traction and your driving style. In general too heavy a fluid in front will cause understeer on power. Too heavy diff fluid in the rear will cuase oversteer while cornering on power and during off power turn-in.
Your car looked planted at LHR on Sunday, what setup are you using?
"Yellow Jacket" Mugen MTX-6, Picco Torque
TeamNITRO RC Club, Lynwood, Illinois