I had a similar issue as well. They called it porpoising (sp?). I dealt a good deal with Scott and John at Calvert. They were adamant about leaving the front loose for transfer and unlimited and stiff shocks on the rear. Also they also stuck firm to half turn preload with driver. At one point I was trying three different sets of rear shocks and was/am using double adj on the front. Once I got the car consistent any change in track or weather and back to square one. I got rid of the mono=leafs and went back to SS springs.
Not saying it can't be done - but call Calvert get them some video and just be ready to really work it out.
Just my experience Good luck