the main spar does not fail at the ends.. it fails in the center..mine was also to short..you are missing the point.. when fliyng,the wing loading is more or less spread over the entire wing..its not lifted just at the wing tip.anyway, after taxie, and 2 minutes of flight,its {the fuel tank}the same as the guy who has 3 tanks!!! now you can fly like a ."SPAZ"... so much for extra g"s the front ,so called spar does not even go all the way through the rib it ends at.. its capt off.. spar?????????