Yea... awkwardly written, at best. Complete bullsh!t at worst. What it COULD mean, is double concave through the middle to concaved vee out the back. A concaved vee is the opposite of a rolled vee... you shape a simple panel vee, then concave the panels. The idea is that the vee give more rail rocker in the tail for easy rail-to-rail and to tighten the turning radius (like a normal vee through the tail does), but the concave adds a little more drive through the turns. Panel vees tend to let a lot of water spill off the rail on a turn, loosing speed. The concave holds more water under the board, directing it tailward, and conserving energy... more drive.
You got me... I was purchasing a board on-line (eBay). I'm being cheap, because I am looking to get two boards. One is being custom made by a local shaper and the other I was trying to save money by getting a board as cheap as possible. I agree that the ads have strange descriptions of board designs. I just wanted more detail on the Epoxy boards before making any decisions. Once again, I agree also to support local shapers. The board I went with seems to be ok. I am not looking for anything special other than a retro fish quad to deal with small surf. I am moving away from the longboard and looking to get more performance in small surf. Which I believe the fish will help. I'll let you know how it all turns out. Who knows maybe the eBay board would disintegrate upon catching a wave. I am sure the board is fine, most likely made in Australia, but is being shipped from Florida. ($360.00 Shipping Included), I did see a twin for less ($260.00). New Triple X 5' 8" Quad Fin Fish Surfboard/Fishboard Fiberglass https://www.triplexsurfandskim.com/cart.php?m=popup&id=3004
It is one thing to obtain technical information and opinions on an Internet forum such as this but another thing to base a decision on this information alone without going out and physically trying out a very different technology or design or manufacturer. The same thing can be said about wetsuits and swim fins. For example, Rip Curl and O'Neil both make very good wetsuits, but I will be damned if a Rip Curl ever fits me whereas the O'Neill usually does. My "fit" experience with Rip Curl/O'Neil is not sufficient for you to make a sound decision on what is good for you.
i'm sorry, but there is no way in hell that that board was made in australia, shipped to florida, & thence sent to your doorstep for $360. the shipping costs alone to get it to fla. from oz would drive the retail price up over $500, esp. w/ the color work. really, unless you're buying a plain white board hand-shaped out of some guy in your neighborhood's garage, you're not paying that low a price. also, when i pulled up the website to look more extensively at your chosen board, it was headed w/ "7S aussie fish". 7S is a GSI brand, manfactured by tiny little brown people in thailand who've never seen the ocean (see the thread, "an interesting read on popouts" for more info). you done got yourself a china board, my friend!
Nope, not everything comes from China. You have a great deal of latitude in how much you purchase is Made in China vs. Made in USA or Made in Somewhere Else. Including foam blanks.
True... and damn good foam, too. The best IMO. Marko and US Blanks to name two of the very best blanks on the market. And there are more...
LBCrew - have you shaped any Eskimo foam? Their blank catalogue is unreal! Lots of creative plugs, many of them are nicely close tolerance for us beginners, ive heard good things about the foam itself. Just curious...i tried to get them to send me a box last year but gave up...they said its all grabbed up by local shapers near their warehouses in San Clemente and Florida so they just dont bother shipping in small quantities.
No... I've never had my hands on any Eskimo foam. But that seems to be what happens to all of us that are away from major manufacturers.... the good blanks are hand picked by the local, regular customers, and what's left gets shipped out to "those guys in Jersey." So you end up dealing with a lot of twists, sloppy glue-ups, voids... Do it's always best to make the drive yourself and pick out decent blanks. Greenlight in Philly gets shipments in on a fairly regular basis, so if you give him a call, and ask him when he's getting blanks in, you can go to his shop and select whatever you want for yourself. He'll also do custom stringers, or order custom blanks if he doesn't have want you want in stock.