Question about D15 offroad leaf springs.

So i attempted to insert variable spring rates in the .jbeam file for the D 15. Got sliders to function in the tuning section, but as soon as you attempt to change the ride height it works opposite of the numerical values. Also there comes a point where the suspension "pops," nothing breaks. All the beams remain intact, but the suspension goes to max height with full stiffness. My questions are: is there a way to assign an inverse variable through the syntax system? Is this a geometry issue where a variable is in a place its not supposed to be? Should i be inserting a variable value to the beam precompression of the shocks?
Any feedback is greatly appreciated, thank you!