I was going through old boxes of archery stuff from the 60's and found full length turkey feathers I have yet to use. Also a receipt from Anderson archery dated 1968 where I paid $16 a hundred for 11/32 port orford cedar shafts. Also my feather burner, a couple hundred nocks, over 120 broadheads from various manufactures, rubber blunts, wire bird tips, field points, 13 fiberglass fish arrows, custom made bow reel, and lots more misc. I use to make wood arrows by the hundred and shot lots of small game, birds, deer, sharks, carp, and a bear. But too old and crippled up to shoot anymore so my bows hand on the wall.
I always used a slight helical jig that made six arrows at a time and burned the three feathers to 4 1/2 inches. Always having a radius on the back end of the feather to eliminate some noise. 90 degree cuts seem to bend down in flight and make a slight noise IMO.