I started with CalTraks and stock leafs with the bottom removed now it has the mono's and double adjustable strange shocks works for me...60's with CT's and stock springs was 1.51, now 1.43 with MSD Grid traction control killing 14* for 2 seconds it is 1.43 60', and that was in 55* weather and cold track. Early on I did experiment with SS springs and was way to stiff, wit & without CT's.