I have a right handed PSE firestorm lite. I put the Muzzy zero-effect on it.

The problem:

When I paper tune it, the arrow ends up about 1/4 inch from the riser. I'm even getting fletching contact. I thought the arrow should be roughly in the middle of the shelf. Mine ends up so far to the right, that I can't even put a sight on.

I've also contacted PSE, haven't heard back from them yet. Went to three different bo shops in my area. Each one removed and re-instgalled the rest and the knock, same results at all three.

Any ideas?