There is a free seminar at the Olathe, KS BassPro about the Hummingbird 797, 997, and 1197c Side Imaging sonars on Sat, Feb 23, 2:00-3:30pm. Doug Vahrenberg of Hummingbird will be the presenter. They ask that you sign up, but the guy I talked to said that you can just sign up when you get there that day. It's supposed to be instructional, but expect a little bit of sales pressure, too. With all the interest that folks have been showing in the side imaging products this seems like a good chance to learn a little more.