Thanks Kyle.

Point well taken, I did notice the large presences of RV builders on the net and it will weigh in big with my decision. Cruse speed and endurance are under useful loads on my priority list so when I compare the RV-12 and Zodiac 650 the numbers on the manufactures web page the 650 has a better useful load number. BUT I know in the "real world" it might not be the case. I'll keep digging around and invest some time looking for completed kits by both company's and crunch their numbers.

Thanks!