I think the selling points have alot to do with it, both rods are very good and will last, breakin has more to do with rod failier and also poor tunning, the os gets a bad hit just due to the crank in the std v spec being a little soft, like the go motor's of current. the current speed and JX crank's use the more popular oil hole in the back if the rod as well, always liked that design better like nova has always used.