Reply by SamuraiSaw

I prefer plywood. There is little strength advantage (if any) of solid over plywood. But solid does have inherent disadvantages such as warping and cupping.

I usually cut a shallow rabbett, say 1/4”, in 1 to 1 1/2” stock to add strength and mask the raw plywood edge. The rabbett provides greater glue area.

-- Friends don't let friends use right tilt contractor saws......