Jammin Truggy conversion spring rate?
 

After reading a bit on the Jammin truggy conversions that have been done here before one thing I didn't find answered was the spring rate that people ended up finding worked best.

My truggy currently has the old 13mm shocks, but they were worn and they liked to blow the seals out so knowing that the truck was getting heavier and the demands would be higher I opted to purchase the 16mm big bore shock kit for the truggy, I also banked on the increased weight and chose the hard blue spring set (OFN41018) over the medium spring set.

Just wondering what anyone else has found out through use. I will probably fill with 45wt and go from there, but looking for suggestions.