No offence dude, but I've seen 275 pound 19ft race boat record holders that don't have balsa in them. They don't have it in them because it sucks up a lot of resin. It just sounds like you don't know diddly about bulkheading and foam core structural. Balsa is way heavier than divinicell or clegacell. But you own wicked perfomance boats, so your a boatbuilder and you must know that.
"275 pound 19ft race boat record holders that don't have balsa in them." Duh, really light race boats don't have anything BUT fiberglass in them! Everything you add [foam or balsa], will make it heavier! But you already know that. Balsa is a spacer, that's it. Foam is lighter BUT not cheaper. Foam does not add strength. Foam adds nothing to looks, BUT balsa does! It's kinda like adding a sponge as a spacer. Now if you really know your shit, You can Quote how much balsa weighs wet with resin versus foam wet with resin! How about Carbon fiber too! I don't know everything about layups BUT I'm willing to learn. Are you open to learning? This topic is a very interesting topic for anyone desiring to learn about boat layup and how materials affect weight/and durability. Your turn Budlight :argue: