...dig it.
Anyway, about the topic at hand I just wanted to throw something else in rather than just chime in (besides which, it's been discussed).
Personally I'm too lazy for a two handed jerk. Anyone who's really done it knows it can be exhausting if done for long and requires a bit of coordination to get both yer hands moving at the same time in the same direction. Besides which, I (a) like to be able to do loong pulling strokes and (b) usually have something else to do with the other hand (turning pages "back when" then, later, working the remote, and as of late, punchin the keyboard).
Much easier to sit back and let others "two-hand" it for ya.