Bankroll considerations based upon estimated edge and Kelly criterion?

I've been reading _Small Stakes Hold'em_ after having read a number of beginner low limit hold'em books. The recommended approach by Miller et. all is much looser and more aggressive. With those characteristics, I can envision much larger fluctuations over the long run. Assuming a solid understanding and implementation of SSHE approach, what kind of edge do you think you have against the average opponent SSHE was written to deal with, and are there any estimates in regards to standard deviation (in a nutshell, how large of downward fluctuations should someone expect on the way to long-term profits)? I had played Blackjack with an edge for a while, with some success, but the bankroll requirements for long-term success at BJ for a reasonable profit are steep given the common rules, table conditions and Casinos' suspicions of today. I would like to believe the bankroll expectations for long-term success against the current crop of (typical) poker players is not so lofty.