hell, i forgot all about the back and forth method... i actually used to do that years ago, but totally forgot about it...
one thing i noticed, is the whites sure seem to be more "attached" to the yolks than they used to be...
how many egg whites, makes a decent breakfast, in your opinion... I usually leave 1 yolk in the mix just for color... i figure the little bit of fat from it, isn't going to harm me anyhow...