Interesting concept, but I'm curious to know too--have you compared it to using yarn or Bowhush? (Btw, the sticker on the end of that spool says Dynaflight '97)
Newell, what kind of gains are you seeing? I've never heard of any real difference in performance between endless and flemish when comparing equally well made strings, same material, same strand count, etc. and flemish have always been quieter for me. Serious competitors like Rod Jenkins and Bill Leslie use flemish, I'm pretty sure O.L. uses flemish on his flight bows, and flemish have always been quieter for me for hunting.
I'm not biased against endless--I can make an endless string just as easily as a flemish, I just prefer flemish on my personal bows.
Chad