I'm considering upgrading to a Minn Kota PD V2 w/ I-pilot and wanted to ask anyone who has one a few questions. I noticed that there is an option to get the universal sonar along with the I-pilot. Does anyone have this feature? Is it worth the extra $100 or so? I just have a basic DF but one day might want to upgrade to something with down imaging, would it work with the universal sonar feature or would I have to mount it seperately? Would the universal sonar cut down on interference issues? Or would I be just as well off with the transducer mounted on the trolling motor externally? Any help would be appreciated. I've read through alot of the other threads and know that ya'll can give some good advice.