After two games on another continent with European opponents and iffy results, the Mavericks soon can find out if their new style will fly against NBA competition. Fans won't get an official peek at the new Mavericks until Monday, when they play their first true preseason game against the Houston Rockets, although their free "Mavtoberfest'' scrimmage is Saturday evening. It may take a leap of faith to get used to the fresh look. But just remember, Columbus took a chance. Sometimes, that's what it takes. What requires the most getting used to is seeing a Mavericks center who doesn't make you queasy every time he faces up to the basket and takes a jump shot. Chris Kaman, despite a balky lower back and a moment during the Tuesday game in Spain when he kept flexing his right leg, already has flashed the skills that made him an All-Star earlier in his career. Kaman averaged 14.5 points and eight rebounds in the two European exhibitions, which don't count in the official preseason record books. He played roughly half of each game. That's the sort of production the Mavericks hope to rely on this season, and it would represent by far the best offense they've ever gotten out of the center position. And this is before the Mavericks have actually had time to work collectively on knocking off a lot of rough edges on the offensive end.