Everybody's driving style and terrain where they will use the vehicle will be different. What works for one may or may not work for you.
I'm currently building a kit and I went crazy reading all the posts here and watching YouTube videos on shock height, pen spring mod and what color springs to use. Then I went crazy looking for the rights pens with the right springs.

All this, without even finishing the build or running the Capra! :mrgreen:
I finally decided to just build the damn thing according to the kit's instructions and just try it out on the terrain where I will use the truck.
THEN I will decide on what I need to do to lower the chassis or even if I need to that with my driving style and terrain.
BTW, my kit came with eight springs, 4 reds and 4 greens. I'm just going to use the 4 reds, stock oil weight and no pen mod and just give it a shot.