I've noticed a difference between adaptive lighting with Betsy and Tiff. Tiff's seem to "roam" left and right and up and down a lot more, and even when the blue light is not on to show that adaptive lighting's in operation, I still get flashed by cars coming the other way. I'm sure it's just a form of jealousy though. Main beam on Betsy was way brighter than adaptive lighting on unlit country roads at night. Tiff seems more generous with her retina burning brightness.