Howard, I think you'll find it much better than "A-C Pine". It will probably have 2 or 3 more plys in it and there won't be any noticable voids. It IS marine grade..right? It will also not face-check over time. Sounds a tad pricey but import plywoods have gone through the roof with shipping costs. How many sheets are you buying? Some places cut the price on multiple sheet purchases.