Thanks for the tip on flooding - I heard horror stories of half your HC coming up when you flood it. Just to give you an idea of what I mean by die off - this is a pic of my emersed HC growing in the same Finnex 4g tank after 1 month (planted on 12/2/11):
You can see the brown spots where it died off a bit originally. I heard that HC does this whenever you transplant it, but now the green is new healthy emersed growth so I'm sure it will really start to take off now.