Well Swamp I was getting a little disillusioned with your method. Since I was used to 20yds and moved up to 5 all my shots were about 6" high, as I expected. I started to think that this was going nowhere cause I'd be spending all my time readjusting for range each time I moved back. So I thought I would just shoot my 300 for the day. It's looking like rain anyway. I shot 141, my best by 15 points. And that's with my usual one stray in each group of 3. If I could control that "one" I'd be a happy man. So I think there is something to your system. I just need a sandbank or something larger to shoot at, I'm tearing the he!! out of my target face.
Thanks