Our sister publication, Aviation Consumer, takes a hard look at the Light Sport Aircraft sector in this month's issue. Is it time to buy? What about parts and service? Some of those answers came from Dan Johnson, chairman of the Light Aircraft Manufacturers Association and a leading expert on this new aircraft category. We caught up with him at EAA AirVenture after Cirrus and Cessna both announced their entry into the Light Sport market, as Johnson talks about the impact of those announcements on the industry.