OK, I'll give it a shot. Riser material; maple, walnut, action wood, elm, purpleheart, rosewood,y yellow heart. The only one I might not use again would be the yellow heart. It seemed a bit soft. Walnut is considered soft by many, but mine is dense and heavy for walnut. Sixteen to eighteen inches long.
Limbs; 66 go 72" mostly 68. Flat or slightly set back. Set back for speed, flat for soft shooting. 1 3/8 to 1 1/8 at the fades. 5/16 to 3/8 at the nocks. The classic Hill is wider at the tips. No tip wedge.
Limb material has been elm, maple and zebra wood. I can detect no difference in performance.
If I'm heading for a standard design it is 1 1/8 at the fades, 68" long, 3/8 tips, 15" riser, hill style flat grip, shallow cut shelf, no tip wedge, maple or elm core.