[Genz]

The BR management depends on your skills and confidence. It is widely accepted, that 20 BIs on a given limit has very little risk of ruin when you have some decent poker skills and are not a losing player from the get go. If you are comfortable with fewer BIs and moving up and down a lot, you can use a more agressive bankroll strategy and take shots from 15 BIs on. But you have to make sure that you are willing to move down when you take a hit. If you're not and playing above your skill limit on a regular basis, you should employ a far more conservative bankroll management strategy.

and about the books that you list: Except Gordon's little Green Book, I haven't looked at one of these ever. I think posting hands and reviewing hands in the forums here (especially micro limits for you) is >>>> than the books you've read. Then I'd recommend the first Harrington and others (look into the publications forums).