In the Long EZ, the fuel selector switch was located behind the pilot's head. In order to switch tanks, the pilot would have to look up and behind him to his left. If you've ever tried this in a car, you'll find that you begin to put pressure on either the brake or the throttle (usually the throttle). I believe this is what the FAA is trying to say in their report - that he was looking back to his left and trying to turn the knob with his right hand and put pressure on his right foot (right rudder pedal) which caused the spin.
He should've checked his tanks and made sure he had the proper one selected before he launched.
And this is one ugly scheme.
Was probably big in the '70s, though. And judging by the selection of women's swimsuits this season, it looks like the '70s schemes are coming back.
