Just finished my add a leaf yesterday. We took the lower spring pack off, went down to the local spring shop and had a leaf made. 2.5" wide, 72" blank with 5/16" centerhole, 0.262" thick, and they trimmed 14" infront of the center hole. Simple solution and it costed $119 for the two leafs, bent to match my existing springs, new center bolts and spring clamps.
While the rear was apart we installed the rear sway bar and lowered the front a hair.
Unfortunately its hard to tell from these pics, but I gained a good inch in the rear, without the swaybar install probably 1.5". In person it made the world of difference, my rear sits at just shy of 26" and the front 24.5".
Thanks Neil.