Repost----(designed as a night course) the "Original" course was too hard for most. I re-sized all of the rings, made the corners wider. Now it's very fast. (no add ons) It's perfectly aligned, but "I" can't go full speed in this one. Most fun online with others! Just thought it was funny that you can draw a plane with an obstacle course..lol. The curb outline is aligned the best the program allows. Not that it matters. Hmm, Maybe I should've posted how to turn on or off the lights instead of posting both versions?