G'day Mate,
I don't think I received any instructions with mine, but check out this site, the picture may help.
http://www.shopatron.com/product/pro...d=DUB499/101.0
To balance spinners, you need to set up the spinner, as you would for a prop, if it has a hole in the end of the spinner, Eg alloy type, or assembled with the rod onto the back plate.
I hope this helps, check out the pictures in the various magazines, they will show most of the options.