Hey all,

Can someone please explain what all the numbers and specs on arrows mean? I have a PSE Impala take-down recurve, 50 pound pull. I shoot Beman hunter carbon arrows "400 8.4 GPI" <------ Whats that mean? They fly well for me, did I just get lucky buying the right arrows for my bow? Or are most arrows compatible with most bows? My fiance just got the Samick Sage take-down recurve 45 pound pull. I bought her the same arrows, did I mess up? They are still in the box and uncut at this moment. Anybody have any knowledge on the subject?

Thanks, Patrick