I'm leaning towards the Lowrance HDS Gen3 9" screen bundled package. It comes with the LSS-2 and an 83/200 KHz transducer. I want to make the best out of the CHIRP. The sales guy at Bass Pro told me today that I won't get CHIRP using the 83/200. He said I needed a chirp ducer. Is this correct? He pointed to the TM150M which I haven't heard good things about. I also have a flat spot on the bottom of my Sailfish forward of the drain plug that looks like a good place for the LSS-2. Garmin points to this as a good placement for their down-vu sonar. I could use facts to I can get this done. thanks for anyone's help.