[Sonny]

rbray,
happenened to stop by shop this am and check board, while the '12 ton' sounds impressive, it is not a very professional looking bend and will result in small wrinkles on sharp 36 degree or greater bends. covered with foam and vinyl or racers foam surfaced foam tubing it might pass spec for historic type racing, but will not comply with most scca functions and definitely fia type international rules. i would suggest if you must design your own roll cage for semi-prof racing that you contact some of the nascar/arca/grandnational roll cage kit suppliers with your requirement. don't shortcut on this if you are going for safety or looks for sure.