Rear-end is kicking up on truggy, fix?

[Finnster]

I have the LX1 buggy shocks. Stock LX1 shocks IIRC... maybe slightly heavier. Some coils were cutoff as per the BB shock mod. Set it up a long time ago really. :) 30 or 35 wt IIRC. Maybe I wrote it down in that thread... I should go look for it.

Its not insanely stiff, the (rear) chassis bottoms out from a 18" drop or so.

I don't think I want to go w/ too much a stiffer spring, but not sure if it kicks up due to too much springiness (lt oil) or too stiff a spring. Maybe some other reason...
I'm thinking lighter oil might be the key. It seems a bit slow on the rebound if you push it down. Tuning can be such a bitch...