Joined: Jan 2009
Posts: 44,172
Likes: 6,404
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
OK, I take the point that it would be hard to measure the effectiveness, especially since these things are rare. And you point out that we do look at the surface. We don't train our eyes to look for projected images, and I don't think we should bother.