Early on in my bow making I tried to make osage bows for the long draw fellows, they just didn't hold up. Because I always replaced any broken bows no questions asked, I decided after making a bunch of replacement bows not to make a bow for a long draw guy unless it was bamboo backed. These bow have held together forever which was a relief.
I made two replacements for one guy with a 29" draw, when the second replacement broke I sent him back all of his money rather than make him another bow.
I have never had one of my personal bows fail, I have been shooting some of them since 96, about 10% of the ones I sent out did fail. I often wondered how they were treated and what made them fail but I didn't ask. I suspect that the owners' new osage bow was a bit of a novelty in their archery circle and they let anyone they knew shoot their bow, including their 6' 9" knuckle dragging cousin.