Wow is all I can say to that sliding box.
Rainman, it depends on how you ride your quad. For recreational and MX, I would go for 3* negative camber.
Check out this guide from Lonestar Racing
http://www.lsracing.com/img/Guide_21.pdfI run mine around 4-5* negative camber using shims on my Zilla for sand.
Good luck.