Has anyone used these and if so what were your results? I am thinking about trying them. Don't know if it is just throwing money away of if they work.

I also just recently got rid of my peep site and added the no peep to my old bow and picked up 9 to 10 fps. I never thought the peep could cause that much speed loss.[:'(]

Thanks for the help.

Don't waste your money on those speed balls. You'll drive yourself crazy trying to find the "sweet spot" to place them and may still only pick up a couple of FPS. Thats also just another 4 screws on your bow to come loose and make noise.

I've heard from many people that they don't work. Dont waste your time and money.

Thanks guys. I guess I will skip that idea.

I tried them on one of my bows and picked 5 fps, it took about a half hour to find the "sweet spot" but you will need access to a chrono. Never had any screws come loose, or have them slip, in a year and a half and I shoot alot. I'm going to try them on my new bow next and see what they do.