The way i look at it is if you shoot 7.5 and keep all your shots say 30 yards and under thats fine but at 30 yards i can get plenty of #5's and #6's in the kill zone and if one walks in to 40 yards and will not come any closer i can still feel good about the shot if i miss. But if i miss with 7.5 shot at 35 or 40 yards then i am going to be wondering if that bird flew away and died under a tree some were...