carbon spine variance

[Shleprock]

I have some shafts that vary by 50. What is acceptable in your book? Do you nock the weaker ones on the stiff side and vice versa? Could these be tuned worth a darn or are they destined for the junk pile? I guess you could tune the stiffer ones then whittle the other ones down to match? Thanks, Greg.

[katman]

Which shafts? I have found some carbons to have a very stiff side(maybe it is a seam) and set all the bare shafts so that stiff side is against the side plate. I will also shoot them all bare shaft to make sure they are right before fletching.

I have some tapered Alaskans.  The directions were to hold them flat on a table and bend them to find the weak side.  Right or wrong, I messed around with a four pound weight on my spine tester to find and mark a consistent deflection and positioned my nocks accordingly.

[Mr. fingers]

Some guys will float there shafts in the bath tub. The stiff side I Think will always be at the underside.

I quit shooting one brand of arrows for that same reason, and switched to another brand that (so far) every shaft has spined out within a .010" span. I have been shooting the new arrows for a couple years now, so have checked multiple dozens of shafts. With the price of shafts nowadays, there is no reason to buy inconsistent ones!

When I was shooting the old shafts, I would just but lots of them, and then separate into .010" spine groups. I still have a pile of shafts that are waaaay too stiff for me to tune to my bows sitting in my arrow bucket!

Bisch

[Shleprock]

Thanks.

[forestdweller]

I can't tell the difference between .500 spine arrows and .670 spine arrows so for me, probably .100 spine?

The only way I could tell the difference is if my form is sloppy since the stiffer arrows will shoot stiff if my form is off.

That being said with adequate fletching and solid form I doubt it would make much difference besides the ones being in tune to your bow being more forgiving.

But then again perhaps I'm wrong! This has just been my personal experience.

I'll play around with .670 spine arrows and .500 spine arrows and they will both have the same point of impact using 4" feathers in a helical. But the ones tuned to my bow are without a doubt more forgiving.