David, you should definitely look at boards designed for the mediterranée, more specifically to your local conditions, by shapers surfing in our local conditions.
Hawaian boards (e.g: the prowave, Hokuas, ...) just have a too slow rocker to work there.
For instance, for my stretch of coast around Cannes, traditional longboards are not great as we do not have waves long and steady enough for them to work: what works best here are either "mini longboards" that combine glide of a fast rocker and agility of a short length, or "performance longboards" (modern shapes) that you can push to exploit the fickle waves.
Other parts of the Mediterannée have other characteristics however. Near Hyeres some longboard spots seem to exist:
www.bothejess.com/ I suggest you read the Gong forum, you will get a lot of insight of the different types of longboard SUPs and their adequation to the spots and intended style... e.g:
Note that I dont say that you must buy a Gong board. I am just saying the the gong forum is an unequaled source of extermely useful information, especially on what woks for different kind of people on different kind of waves, and that you should read before buying something not adapted to your conditions and tastes.
Exemples:
www.gong-galaxy.com/forum/viewtopic.php?p=62345 (explains the old school shapes like the Laird/Pearsons)
www.gongsup.com/forum/viewtopic.php?p=81390#p81390 www.gongsup.com/forum/viewtopic.php?p=88612#p88612 ...