On a related note, I was out flying last night practicing approaches. There were at least a half dozen folks practicing maneuvers directly in the path of any aircraft on the approach. The issue that I had was two fold. The traffic box color was difficult to read for me. Not enough contrast with the white approach plate. The second issue was that I couldn't see any of the directional traffic tails. I don't know if they are white and blend in with the plate, or were just missing.