I recently bought a 788ci hd di. I'm having issues with consistent depth readings at speeds above trolling and any speed in choppy/rough conditions. I've included some pics of the new transducer mount of the left and the old transducer on the right from my 565 unit. I've tinkered with running both units off the old transducer (920xnt) and the new transducer. The new transducer finally started getting consistent botom readings trolling (1-2mph) after I changed the surface clutter setting to 0. Any thoughts on changing transducer placement?