i ran them such a long time ago that they've likely been redesigned at some point so my opinion may not matter....but i was not very impressed with them. i went offroad once and broke the main leaf in both packs. Rustsy was an absolute nightmare to deal with. ride was much better with SOA and stock leaf springs. flatter the arch the better the ride will be.
crazy to think i've been screwing with this thing for 14 years haha.