never heard of them. Also when i see people using spinners they are alot bigger, i dont know if it for more line or better drag. but for $31 cant go to wrong. The only thing i would suggest is to always push your button when you knock your arrow, and then again before you shoot. if you tie to the end of the arrow, when you draw back your arrow should fall from your string. just knock your arrow reel all the extra and push your button. hope this helps. and good luck.
- Garstick likes this