Also, Pole and I are in agreement that the Sprecher tour is not really worth the time. Our last local brewery tour meet made this clear. The staff is rude, the guides are deadpan (reading from a memorized script) and you are rushed through your samples. I've heard more than one person who has said that Randy Sprecher is a giant DB, and it's reflected in the tour. IMO, Lakefront is the only tour really worth doing in Milwaukee.
If you really want to have fun on Friday, I would strongly recommend going on the cruise and hitting the Lakefront 3:00 tour.