I line mine up, not for the look, but because my arrows actually fly more accurately. It seems that this isnt a common ordeal but its entirely true to my setup for whatever reason may be. Try it, there should be no difference but if there is youll definately notice it. When mine arent lined up, I hit about an 1 1/2 to 2 inches left and about 1/2 low, when lined up with fletchings I ruin arrows and hit dead on out to 40 yds. 3-3 1/2 in groups at 50yds.