I just got in some wood shafts and here are some facts;
For longbow 47#@28", cut 29 back of head!
Spine is 55-60 lbs.
Tapered 11/32 down to 5/16 at nock!
Ordered them dipped, stained,crested,and nocks installed!
Wood is Poplar!
Maker-Twig Archery!
Made up they weight 560 grains with 125 grain head! 435 grains without point!
The raw shaft at 31 1/2" weighted 420 to 440 grains before taper and cut to 29"!
Arrow cut 29" comes out the same as raw shaft!
I will test them latter and let you know how theu shoot? Ken