I'm looking into replacing the transom in my boat. It may last another season or two but thinking about doing this now as a preventative measure. I know coosa has been used in transoms successfully by restorers and new boat manufacturers. I came across a clone company called space age synthetics from Fargo. Nd. Wondering if anyone here has used their product before. Its cheaper than coosa. My old core was 1.5" so I'm thinking of laying up 3 layers of 1/2".