While at the club airport this week with some of the members I watched one guy with a YAK took it straight up right after TO. This is probably the highest I've ever seen someone do this. But it really surprised me that I had no problem telling if the plane was right side up or inverted. He has the plane painted International Orange and White, mixed on top, with the underside of the plane being totally Inter. orange. I didn't have to look twice to tell.