I only got to spend about an hour and a half with Rick in December of 2009, so perhaps I'm not qualified to give the full "run-down" on how he tunes the bow to shoot the given arrow. None-the-less.....one of the biggest things that I learned was that if your arrow is striking either "right or left" of where your looking, it is possible to change your sideplate and/or strikeplate to "compensate" some......"some" being the key word. First off.....I am right handed, so please consider this when you read what I am attempting to tell you below.
Examples:
Your arrow strikes "LEFT" of where you are looking. His fix is to soften either the sideplate and strikeplate by using something that will absorb more of the arrows bending when it goes into the paradox. This, for me only works up to a certain point, depending on how center-cut the riser is on the particular bow. I have found that I can only find a material that is "so soft".......to use in either position when attempting to move an arrows point of impact to the right.
Your arrow strikes "RIGHT" of where you are looking. His fix in this case is to either harden the sideplate and strikeplate, or both. This can only be done to a certain degree also but when you get the hardest/thinnest sideplate/strikeplate that you have, you may still need more to get your arrow further. Your point of impact can be moved further to the left by putting on a layer of double-sided carpet, one layer at a time and then shooting a group. If one layer doesn't do it.......add another layer....and so on. It has worked like a charm for me on ANY bow that my point of impact was to the right of where I was looking.
As far as moving your nocking point "up or down" that would depend on whether your point of impact was low or high. If it is low.....move nock point DOWN. If it is high.....move your nock point UP. You will be amazed to see how much room you have to play with......without causing any porpoising of the arrow in flight. If you get porpoising, you will have to move the nocking point back the other way. If you only move the nocking poing 1/16 of an inch at a time, you will find a spot that works very well and most likely won't get to the place that you have a porpoising arrow in flight.
All of this takes a little time, and to get it totally right.......for me, it takes a couple shooting sessions. If you get a new string, this will change as the string gets the "stretch" out of it, but is well worth the time. I don't know if this explains it any better than watching the DVD's, but I was just like you are. I just couldn't get a grasp on what he was saying without having him show me in person. He truly is a GREAT teacher and as nice of a guy as you will ever meet. There isn't a doubt in my mind that if you gave him a call that he wouldn't do his absolute BEST to get you to understand over the phone. Sometime in the near future, I'm gonna take the plunge and spend the full two days out at his place. It will without a doubt be the best money that I have spent since returning to traditional archery.
Winterhawk1960