so I just recently bought a new bow. (its a diamond core by bowtech). my old bow was only 60 lbs @ 29 inch draw and my new bow is 70# @ 29 inches. the arrow im shooting have 400 vanes. anything inside of 20 yards my groupings are pretty tight. but once I get to about 36 yards and above the accuracy drops and my arrow flight starts getting wild. before I try making any adjustments to my bow, does the issue have to do with my arrows not being the right match for my bow? that is what im thinking but I just thought I would see what everyone else thought.