I will be in the market shortly for a Fishfinder, and seriously considering Lowrance over the Hummingbird 997 SI. After speaking with an employee of Bass Pro, he said that Hummingbird has patent rights out through 2017 on for Side Scan technology. Therefore, if Lowrance comes out with side scan that's remotely close to Hummingbird's, then I'm sure a lawsuit may happen. So if true, I am nervous to purchase a Lowrance, because their side imaging may not be as good as Hummingbird's. My personal opinion, I like the Lowrance HDS models much better. I am not sure what others have heard, but it'll be hard to pull the trigger on a Lowrance knowing that rumor.