I am in the planning stages of a 22' full width 10k trailer build and the design will be loosely based off of a PJ B5 buggy hauler . I told myself after building a 12' utility trailer that it makes way more sense to buy one...but here we are. Aside from the lead times I keep hearing, the thing that is tipping the scales toward another build is the opportunity to get a pair of installed a few years ago and never used 5200# torsion axles for just about free. In all my research PJ is the only company that uses them on an equipment trailer and it's a tilt unit. Why is that? Am I missing something obvious as to why they can't or aren't used more often? I have a decent understanding of trailer suspension and know that these axles will be independent of each other, so the load won't be shared between the axles like a leaf spring setup with equalizer bar. What say ye NC4x4.