The instructions for the rack recommend against installing the standards over drywall and instead directly to open 2x4s or concrete wall. However the rack is U shaped and the inside dimension is 1.5", so if you put it directly onto a stud it slides right over it, making it impossible to get the tabs of the shelf brackets in.
I was thinking I'd put plywood behind the rack instead of drywall. I only got the 24" long standards and I'll be putting them over the miter saw. I figured I'd ask what others have done as I know some people have used this system.
-Leuf