I want to start this story by saying that we shouldn't throw away our early attempts at bow building. Even though they may seem hopeless at the time, after we gain experience they may be fixable. I sure wish I had saved more of my early bows.
I was at a friends house a while back discussing bow building, I think we were discussing our early bows, how bad they were, and what it would take to fix them. In the corner of his garage is a 5-gallon bucket that holds "bucket bows", the ones that didn't turn out well but were too good to throw away. He retrieved one such "bow" from the bucket, handed it too me and said, "try to make something shootable out of this one". I'm always willing to accept a challenge so I agreed.
After I got home and looked it over really good I started to second guess myself. It had three different rings on the back, was whip tillered, and had a big knot on the edge of one limb. However it was 70" long and had plenty of wood in the riser to work with. For grins and chuckles I put it on a postal scale, it weighed 30 ozs and drew 47#.
I'm not sure what happened here, but it wasn't good.
I started by working the back to one ring and then cut it to 62" long. Then I reflexed the tips and aligned the string.
I was able to remove most of the knot and it started looking pretty good.