One older instructor I met said he only concerns himself withstraitness and spine and never weighs his arrows.Now he only shoots his hand made bows and if weight doesn't effect one of these, being slower,then I wouldn't think you'd haveanything toconcern yourself withwhen using a compound.

I do drop the cash for .001 arrows, and arrows that will be within 1 grain of each other (according to the manufacturer anyhow, rarely true in the real world), I also number my arrows on the fletching and also write their weight on the fletch as well so I have reference on each. However I agree with the above where most people don't have the shooting ability to see even 10-15 grain differences unless beyond the 40 yard mark, including myself. With that said, my pro 22's for the Allegiance all weigh in at 356-357 grains, and my Cobalt X7's for indoor all weigh 549 grains on the nose. I put string wax in the insert and screw in the points to force it in and keep adding until they weigh the same.........(yes I know this is a little OCD and unnessecary)

I'd say you'll have a lot more than 1 or 2 out of two dozen that don't fall within your plus or minus 1 grain. You'd be lucky to get 2 or 3 that would be in that zone when you get done with glue etc. If I were a paper puncher looking for X's I'm sure I'd weigh and sort and weigh and sort and do it again. BUT, since I'm a hunter I shoot and group and tune each with it's own broadhead and shoot and group and put them in the quiver. Those that don't group become practice arrows. PLUS or MINUS I don't really care.... I figure it'll all come out in the tuning, shooting and grouping.