Has any one installed 2 transducers using the same frequencies on your trolling motor and had problems??, I have a 898 SI HD on the bow, would like to add my 597 HD Ice unit on the troller mostly for the flasher option on it, don't Ice fish anymore and would like to use the flasher option which is awesome to adjust very quickly on fish that are in the water column. These would be on at the same time. TIA.