I was wondering what is the effect of re-developing after bleaching - so dev, stop, bleach, re-dev, bleach, fix. Also, is the normal C41/ECN2 bleach a rehalogenating bleach? Anyone? PE perhaps?
What you're referring to is "rehal", after the rehalogenating bleach required to do this. It results in increased saturation as long as you bleach out the silver at the end. There's an old thread here which talks about rehal for doing partial bleach-bypass.