Getting Started in Hold'em NL short stack question

[mgminbigd]

Long time reader, first time poster. I've been a limit hold'em player for a few years now and am interested in playing NL. I read Ed Miller's Getting Started in Hold'em and was fascinated by the short stack NL section. I have a few questions:

1. When playing in the blinds do you raise with the same hands that you play from late position or tighten up because of position? I assume you would raise the same hands if no one has shown aggression because it is basically a two bet system (Raise pre-flop, All-In flop).

2. If you play using this method, you won't be playing many hands and the blinds tend to chew up your stack. At what point should you add on to your stack to still make it effective?

Any information would be appreciated.