Well I disagree with you there. Like I said before a self bow that is properly made and tillered isn't going to break very easily and no change in shooting style is needed to reduce strain. The only way you could damage a self bow while shooting is if you over draw the bow,and even then the bow is more likely to take a massive set before it breaks. Watch the second video and you will see that their shooting technique isn't a whole lot different from the guy in the first video. The bows they are shooting in the second video are self-bows.