I've been looking at upgrading my trolling motor. Was curious, I currently have sonar, down imaging, and side imaging on my depth finder at tge bow right now. The built in sonar in tge new Motorguide Tour pros does not do side imaging correct? And if it does now then there's technically no point in spending the extra money on that one in my situation right? I just want to make sure because this will be my first TM upgrade ever and pricey so want to be sure what I'm getting. Thanks!