It's very important to have a consistant starting point. I just inch in VERY SLOWLY until I turn on the second beam, I run a pro tree so I leave when I see the faintest hint of amber. I average .01 to .02 lights not great but good. If i want to really cut a light a bump the car one bump extra into the lights. If I'm going JUST barely red consistently I can take air out of the front tire or Change which light I'm looking at, on a pro tree the top amber comes on earlier than the second an so forth, If I'm really close but still red I'll watch the bottom amber instead of the top.