hmmm, i don't think longboards are the answer to small wave slop. and before anyone jumps down my throat i've had a number of progressive logs, a stewart hydrohull was one as posted above - which i did'nt rate that much. i'm also 16st so if anyone was going to struggle in slop it will be me.
the problem i find with logs are 2-fold:
1 that the transition from 9fter to shortboard i personally find difficult. ok some guys may not have the issue but if i spend anytime on a log it takes me a while to get used to a small board again.
2 that in small, as in knee-high, they're just too straight line. fine if thats the way you want to surf i suppose, but i have a 7ft quad that flies, albeit with some work, a 7ft10 takayama surftech thats like a log only loose and 7ft2 linden journey (google it) that is amazing in gutless but clean conditions. the last 2 boards are worth some serious consideration if you crave turns.
and here's the really contentious part of the post... if you really want something that will destroy small waves, be more chuckable than any other board out there, get way more waves than any other board, give you a stunning workout and at the same time really improve your regular surfing get a stand up paddle board. not one of the logs that are giving sup a very bad rep at the minute, but a 9ft or so performance board. in gutless stuff they are incredible.