HI!! Everyone My wife got me 6 new GT Lazer 2 bolt/ arrows [before I get shouted at] She thought they were the same take came with my X-Bow when I got it.[awhile back] But they have 4 inch vanes [ 5 inch on the old ones] and brass inserts [alum on others] and they are shooting about 3 inches low. Should I keep the brass inserts or buy some alum ones? Which do you think is the best way to go?
[before I get shouted at] She thought they were the same take came with my X-Bow when I got it.[awhile back] But they have 4 inch vanes [ 5 inch on the old ones] and brass inserts [alum on others] and they are shooting about 3 inches low. Should I keep the brass inserts or buy some alum ones? 
Which do you think is the best way to go?
adjust your scope to where they're grouping, happy hunting.