I will agree that the EVOLUTIONS don't seem very flexible--i've used them for two years and like the way they shoot but they don't stand up to very much abuse--so i don,t abuse themI've never had any trouble with them other than breaking after hitting something that wasn't meant to be shot by an arrow--trees or rocks for example ruin one of these arrows,huh?They don't withstand any side force to the shaft in flight like glancing off a heavy branch--i guess i'd rather have 'em break than bend.jmo.