I am thinking of switching from paralell to tapered cedars, 23/64 on the point end and 5/16 on the nock end with a 10" taper. Generaly speaking do I need to go with a heavier spine for tapered arrows. I have virtually no experience with them.
I've never tapered my own shafts but I believe your parallel shafts would lose something like 3-5# of spine if you taper you own.
Ari: When I was making custom arrows i did my own tapering. I never got a difference of more than 1# after tapering and average a 10 grain weight loss on most soft woods. When I barrel tapered I would loose about 5#.
X2 what Bill said.
I'm pretty close to Bill; I lose an average of two lbs with a 10 inch tail taper. Heavy spine shafts will lose a bit more.