I don’t have the link here, but it’s a pretty often posted one over on tradgang. I think its from the ACS (or ALS) website??

But in “my” terms, I pick a shaft size & leave it long. Usually 4 total, 2 fletched, 2 bare. Figure on a rough point weight and if you are planning to shoot weighted inserts. NOTE: The weight up front makes a big difference whether it is a normal insert & heavy head, or weighted insert & normal head. Those weighted inserts are long and I believe change the “useable” shaft length.
Shoot all 4 arrows aiming at the same spot. (Hold bow vertical) BS right of FS = weak BS left of FS = Stiff.
Up and down can be adjusted as well depending on BS/FS POI. I have a tough time because my release is such I am almost always nock high no matter how I set my nocking point.


Usually with a long arrow your shafts will show weak. Cut ¼-1/2” off at a time, carbon shafts stiffen quickly. You can fine tune with adjusting point weight as well. I usually stop when my shafts still shot a little bit weak. When shooting hold the insert into the shaft by pressing them thru a plastic grocery bag when inserting them into the shaft, then you can just pop them out and trim off from the front.
Many people say to ignore nock left/right for tuning purposes but I disagree. It seems to go hand in hand.

Hopefully I didn’t confuse you too much. That website is very helpful and thorough, I don’t have it book marked here at work.