Our track went to LED tree in the middle of the season and I've been struggling with red lights ever since, had one just last Friday night in the Semi Finals.
I used an amber shield with the old incandescent tree and it worked great, but with the shield now I can't even find the bottom bulb on the tree the track is so dark...So I'm back to watching the bulbs count down. In time trials while the sun is out I'm better but still leaving to soon...I think I'm anticipating the 3rd bulb instead of SEEING the 3rd bulb.
I'd try something to block out the top two bulbs if I could see where to look for the bottom bulb.
FYI, my night vision sucks. FML.