Geo, Tnx. My 1/10 of a ton fadass provides ample cushioning. I made the box a few years ago with scraps from a boat project. It's 1/4 and 3/8" marine grade plywood, with two shelves and two oval openings for reaching in. It resembles a woodduck duplex nesting box. Seams are fiber glass tape , covered with marine epoxy and spar varnished. The seat is slick enough to spin on and has provided me with many misses while seated over the years.

Geo, here are photos of the box. Its not as light as a 5 gallon bucket, but its more convenient for me than a bucket as its easier to retrieve shells, stow doves, empty hulls, etc. The weight is no factor as I usually enter and exit the field via a sedan chair carried by my groupies, sychophants and gun bearers.