My thoughts exactly. After I've used them awhile the latex tubes are stretched to the same size as the tire. There is essentially zero stress... they are just pressed against the inside of the tire. Yet Lightweight has prohibited the use of latex tubes in their clinchers, and many riders claim they are unsafe. My first thought is that it is easier to pinch a latex tube, and it will also last longer in that state than a butyl tube... increasing the chance that it will fail at a very bad time.