Yes, Id is the same I can use all my spare nocks and inserts in either shaft. If you want fast, new ones weigh 7.3 gr per inch, nock is 20 gr, alum. insert is 30. If I add them up, I get 196 gr for a 20 inch. My excal needs 350 min with tip. So I must add some weight somewhere.

Hope this helps, Almost all Cb's have a min. weight for the bolts, So please check.

Lotsa Luck, Stan