Supermaxxrich, sorry if I'm mis-understanding something but would'nt your chassis have to be flexing UP in the middle to wear your body like that? I've been racing offroad for many years and have had a few flexy chassis and the ussually wear the body the other direction.
On the servo issue, I'm at 1.5 gallons(3 track days), no servo issues (hi-tech 925mg)
On the clutch issue,I'm at 1.5 gallons(3 track days), replaced 1 5X10 & halfway thru the second stock set of shoes. I think I'm over geared with the 14 tooth at my track.