RE: Confused? GT Laser II weights?
Though I am not shooting GT Laser II's I have been looking into building some as the Beamans I have have FOC issues. I remember reading that there were 2 different brass Insert weights 90g and 110g. That may be part of your difference.
I have seen my broadheads and field points vary+/- 2 grains. My arrows also have a +/- 2 grain variance as well. In my case I was able to chart out thearrow and BH/FP weights and mix and match to come upwith 10 arrows that are within 1g.All of my arrows are numbered on one vane and Ikeep this list handy for reference.Please note that I am more than a little AR.
With an ASDyou might be able to shave off a grain or so off of an insert butonce they are built it can be difficult to make bigger changes, especially if the inserts are super glued in.
Bob