Interesting Finding
 

For what it's worth in addition to the results of the 100 race survey I submitted I also noted the following. Horses that were in the top 4 of both bl/bl & RX screens won 68 races, horses appearing in the top 4 of at least 1 of the screens won 17, and horses that failed to appear in the top 4 of either screen won 15. In the current 100 race survey I'm conducting I'm also charting where the ist 2 finishers rank on both screen. I will post info when cokpleted.
Tim G