ORIGINAL: mauser06
...they say you loose more from weight in the center of the string than towards the limbs....not sure why that is.
you ever see them "speed balls" or something they sale claiming to give you more speed?? kinda the same concept....gotta tinker and find the sweet spot and the right number of them on your bow and they COULD potentally add speed.
the person said they are pretty much brass knocks wrapped in plastic shrink wrap. when i get a new string i wanna disect it and take pics....
I think it was TFOX who said it. but I'm not 100% sure either. But it is true. I put leeches as close to the cam as I can.
I put VT strings on my Black Ice and shot it w/o the nock on the bottom and then put one on the string and shot it. It added 3 fps.
It it a bigger size brass nock w/ shrink tube over it.