The fix was to (1) take steps to make sure the image was entirely pre-loaded into RAM before the test was given, and (2) randomize the latency of the load. That

The fix was to (1) take steps to make sure the image was entirely pre-loaded into RAM before the test was given, and (2) randomize the latency of the load. That worked and I actually got some real results, which unfortunately were decent but not as impressive as the cheating was. :) When it cheated the thing got 100% right of course. I also learned that rapid convergence on incredible accuracy is suspect.