FrankmI shoot a 29" arrow with 4" plastic vanes and a 65 grain 3 blade muzzy so that gives me a total of 365 grains for the arrow. Just yesterday my arrows were self destructing in mid air, come to find out I am not supposed to shoot anything less than 420 grains out of this bow. I have shot these arrows for years...hundreds of times with no issues. So if I combine my arrow weight with broadhead weight I will be ok as long as I got to or exceed 420 grains? I never once thought about arrow weight having a min for a bow.