We had a color code for wire at work, blue, orange, green, brown, slate(gray). I plan on making the arrows 25#, 30# , 35#, 40# and 45#. So I'll make blue be 25# etc. I've been retired 12 years now and still remember the color code so I'm OK there. If I ever get so I can pull a 50# bow I can make some more. Any comments on fletched vs unfletched.