Been think'n about this for a long time, didn't want to say anything because we all know that no self respecting hot surfer would ever dream of riding a board as thick as 2 railway sleepers nailed together. But most of us aren't hot surfers, I've surfed with many of you, and we all cope well, but most of us are just weekend warriors.
I've been looking at my own experience, if I overestimate my ability and order a board too thin, like my second last nose rider, it turns into a very unhappy experience simply because I can't catch waves and I may never go back to that maker again, even though it was not his fault.
So when I ordered the hot log from Del, I made sure he gave me every CC the blank could possibly provide, he was even surprised at the amount of thickness he got out of it once he removed the scab, and I'm now I catching waves and I'm happy as a pig in poo.
There's a young guy at our local break who made his own longboard, it's as strange looking as anything you're ever likely to see, volume everywhere, nose to tail, I swear all he did was take off the scab, cut a plan shape, sand the rails and glassed her. He rips all day every day, gets more waves than anyone and only 2 days ago, I saw him at the local on a standard longboard, he was just another weekend hack fighting for a wave with the rest of us.
Here's a vid of a similar experiment in the islands, they basically glassed a bog stock blank, even left the stencil on it.
As far as I'm concerned, for me, and probably the majority of us, volume is everything.