Fixing to buy a new depth finder for the front of the boat.(trolling motor transducer) Any suggestions on what to get?? Already have a handheld GPS so I really don't need that feature. I have a Lowrance x37 mounted on the steering console that reeds off the transom but all its good for is water depth and temp and I can't see it while I'm in the front of the boat. There are so many choices I'm not sure what to buy.