For the last couple months I have been reducing the weight on many of my self, and backed bows , so that I can continue shooting them. In the 35 lb range, and for target shooting at my club only. Not hunting. I have one arrow combo that I like to shoot from all of these bows. Most , but not all of the bows are strung with 8, or 10 strands of B55. The bows that are strung with low stretch BCYX, 652, and D97 will bare shaft tune nicely with my arrow. Saves on me buying different spine arrows. Not so with B55 material. Just thought it might help some of you out that are in the same situation as me. Good building, and shooting.