Anyone ever tried the Lowrance transducer switch (SB-9BL) ?? I have a transom mounted td that I dont really like the results of when motoring. I am considering getting a shoot thru hull one and mounting it to the bottom of the boat in the bilge but keeping the transom mounted one. This switch would allow me to go back and forth between the shoot thru and transom mount. The shoot thru is only 200 hz, the transom one is 50/200 dual frequency, I never use the 50 hz because Lake Erie is not deep enough for that but . . .