Is Spine different on tapered cedars.

[fireball31]

I'm looking at getting some new cedars. Right now I am shooting 60-65 spined shafts.  If I switch to tapered cedars will I need to bump up in spine?

[Bjorn]

Tapering the fletch area 8-10 inches has minimal effect. Barrel tapering-front and fletch will cause you to move up one spine group.

[Orion]

You can buy them tapered at the spine you want.  If you buy them untapered, and put on a  9-inch rear taper, it will reduce the spine from 1#-3# normally, not enough to worry about, as Bjorn notes.

[Jim Curlee]

I never noticed where you lost any spine, from tapering.
In fact I could barrel taper a shaft,or breast taper a shaft, and it would have about the same spine as the parallel shaft. Not enough difference, that I could see at the spine tester.
In other words, no.
Jim

[2treks]

Tapered shafts are spined after the taper is ground. So it will not matter.

[Orion]

Two tracks:  Only if you buy them that way.  I buy parallel shafts and taper them myself.