Except, being part of the high hash rate pool isn't necessarily the best strategy.  There is no such thing as 0 fees in this game because you always have your daily maintenance and utilities.  Often, joining the highest hash rate pool means that when that pool does find a block, it's being distributed among a larger group of people who combined have a larger percentage of hash power than you.  So sometimes, by joining a smaller pool, you might not find as many blocks; however, when you do find one, it'll likely result in you getting a larger slice of the pie...

And make sure to take as much advantage of the Faucet as possible, too.