Wouter,
the first pics you got were indeed a scaled moth sail, but in case you hadn't noticed I redid everything for the pics that were posted, so thats irrelevant.

No its not an LR2, even an idiot can see that, but it does use a few tricks from that, but more so from my new F16...Oh and btw, the 3 LR2's were built at home, just by 2 skilled guys <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />

While the round bilge version will take more time and probably a bit more skill it will win races (and there will be some over time) and it does look nicer.

As for building an F12 in 100 hours, your dreaming, for your average homebuilder (first time round) I'd say 400 hours was optimistic if not impossible (and in case you didn't know Ive built over 30 boats over time....and I think about 14 of those were wood) In case anyone wants to see what's inside a Paper Tiger go here.... http://www.bur.st/~h20melon/other/building/The%20Building%20of.pdf ... and then tell me if after you have looked at the pic without the deck whether your going to build that in a 100 hours. And thats just 1 hull <img src="http://www.catsailor.com/forums/images/graemlins/smile.gif" alt="" />

As for the draggyness of hard chined hulls...your comparison is invalid cause they weren't hard chined and a boat's performance is always (no exceptions) the sum of the drag angles (read Marchaj)...under no circumstances does drag make you more resistant to slip or improve your leeward angle.
RG