rear end trouble at the drags

I also had the same porposing problem when I first added my CalTracs with XHD leafs.I swapped to the mono-leafs,problem solved.My 60fts are 1.44 and hoping to get lower this season.:D
Oh I,m also running 1 full turn preload with the Caltracs and QA-1 12 way adj. shocks.