RE: How do you add total arrow weight?
Let me take Mobow's example with my own Beman ICS Hunter 340 to give you a better example:
Grains per inch: 9.3
length of shaft (NOT total cut length): 28.75 (9.3 x 28.75 = 267.3 grains)
Beman ICS insert: 21 grains
Beman/Easton 4" standard plasticfletchings: (8 grainsx 3) 24 grains
Beman Super Nock: 12 grains
Field tip: 100 grains.
267.3 + 21 + 24 + 12 + 100 = 424.3 total grains
Butch A.