I shoot a Bear Grizzy 50# recurve with carbon express Maxima 250 arrows. The carbon express nocks are way to tight on my string. I have filed them down with mixed results. I just got Bohning 5/16 Traditional nocks. They fit the string nicely, but they only fit about 1/8" on end of the arrow. If you dont glue them on exactly straight you are screwed. Any suggestions? Do I need to change my brand of arrow? Help please.