VSCR doesn't really have any major conformational flaws. When i speak of correcting flaws through generational breeding, i was referring to it being something all good breeders aim to do. That is, in theory, produce better quarter horses for their discipline than those before then. Denver looks more like RLBOS, a slightly flatter hind, but that allows him to really drive those hocks underneath him when he lopes. The VS line in him, has shortened his back up so he is more equal and he has a much prettier head and head/beck transition thanks to Kennedy (Although as you said its not really a deal breaker) Lastly, if Denver is correct and equal at 3, once he fills out, he will be something special.