I tried posting this earlier, here is my second attempt. I just got some Astro Flight, I don't know why I spent the money; I guess I am just chasing those few extra fps. My one buddy is a student of Rick Welch and he shoots them, 14 strands. This is Rick's recommendation, but he has had some problems in the past with his string grooves. My other friend, and archery mentor, thinks its not worth it and warns of the damage that it can do to bows even if they are rated for non-B50 material. Well the string is bought so I started twisting up some strings tonight and was added 8 strands to the last 8 inches that I usually start with for my loops, bring the total to 22 in the loops. My question is this, is the danger that the string is too thin or does it have to do with the lack of stretch? And if the problem is that it is too thin wouldn't padding the loops make that material work for all bows? Does putting this extra material in the loops defeat the purpose of the narrower string? And what are your feelings on Astro Flight? Someone out there must know, thanks for the help. Happy Shooting.