I too haven't used my 4216 in years, but I can tell you that WWGOA (George Vondriska), has an in-depth video series on this jig that is quite intuitive. Worth watching. He goes through all set-up techniques and troubleshooting. I don't recall if this series is free, or if it is a subscription. I received it years ago when I was a member of WWGOA. Worth looking into.