Originally posted by A.S.: Barry, I've been building 8 strand D97, loops padded to 16 with Dacron. For serving, I'm using .030 Halo and laying 2 strands of D97 under it for proper nock fit (with my Axis arrows).This will help with your "recipe". Getting the proper serving size for your nocks can be the hard part.I don't think you will find a huge difference in the different FF materials. D97 seems to work great for me.Here's a great tutorial on string building that was posted here a while back. http://rmsgear.com/tutorial_string_2bundle.htm