I wish I was kid'n, but I ain't. Well I have run out of, or had to flip to reserve gas, around 6 times, at the very same spot/location. I thought, gee, how odd, what are the chances, do I ride like clock work or what? Same spot, be it on my Rebel or S40, dang.
Well, I thunk a lil' more about it as I had to flip it again yesterday and I think I figgered it out. It's on a rather long down hill slope, bout 30 degrees, or so. Uh, duh.