I'd be interested if I felt you could crank it up in waist high conditions
yes, very definitely. and especially if the waves are a bit full they really come into their own.
the prob with a paddle on a prog mal is that, unless you are silly super light, it would'nt float you to stand up paddle. but don't be fooled by the usual stand up logs that most people are seeing (and i'd argue are giving the few of us that actually surf the things some really bad press), there are some seriously advanced progressive boards being made - i've got a 9-3 quad coming in a few weeks and the guy i surf with regularly has a 9-3 thruster that looks and surfs like a regular shortboard.
i've had a few longboards, and indeed at 5-11 and 16st am built for one, but i don't surf them because whenever i do i enjoy it for a few sessions then start to crave shorter boards... but if i could get a longboard that surfed like a progressive sup then maybe it would be another story.
here's a progressive 8-5...

and some nice pics...



