No offense but I can see why you're a boat salesman and not a rocket scientist. To discount performance opinions with sales figures wouldn't even fly in high-school debating mate, it's not the same topic. Lada's are slow but people bought 'em.
Maybe about 10 people on the planet have sailed a J111 granted but I have faith there are lots of experienced nerds on the site who crunch key performance indicators (SA/Displ, chute size, upwind SA, LWL, BWL, draft, disp:ballast, etc.) and current J-Boat owners who can do some reasonable extrapolation of this coupled with the pictures they saw. I kn