Hotchkis leaf springs sagg brand-new

I understand the 0 arch, but when you only have 1-2" of travel, 440lb/ft tq, and 0 arch you cant have 130lb/in springs (all facts im sure you're equally aware of).
I plan on making a four link similar to Mad Dart's, but with johnny joints, maybe a watts link if I don't triangulate it, im currently trying to put things into CAD while im working to get my truck done...Good luck on your endeavors 72BBSwinger