[JohnB]

I would find someone with expertise in clamping the coosa, and do what they did. I came close to using coosa, but went with plywood on the last one. I think that stuff has more flex to it when you clamp then plywood. Also, I don't think it has the compression strength that plywood does. I got away with clamps on the top, boards through the bracket holes, and then a bizaare seriese of bolts and boards through the drain plug. I don't know, but my guess is you will need a little more clamping contact area with the coosa.