Got these from Big Jim last week with pre cut RW feathers. Cut them 29" and cleaned both inside ends and shaft with denatured alcohol and gluded in the nocks with Duco and mixed up some J-B Weld and put the inserts in. I usually use Gold Tip nocks with no glue because they fit tighter.
Put the 5" feathers on with fletching tape and sealed the ends of the feathers with Duco.
  The stats for CX150 are;
Shafts come 32 3/4" long and weight 360 grains.
Spine on my old spine machine is 64-65#.
Finished arrow at 29" is 320 grains.
Finished arrow with 250 grain field point is 570 grains. Shoots great out of my 47# longbows.
Pictured with my 3D/Stumper quiver. Ken

3D/Stumper quiver w/ CX150 arrows