Terry, give me some advice. I done my eye exercise routine this morning. I like to use Kiners CD. Then I was working out on the chart this morning. To me it makes more sense to work on the chart at a short distance VS a longer distance. My theory is you have to move your eyes (and gun) more at a shorter distance. Just like real shooting. You have to move your eyes and gun more on 16 yard targets than you do on 27 yard targets. Do you think this helps the eyes. What have you and anyone else who uses your chart think?