I am looking for transducers to suit my fcv295. There seems to be little specs listed other than beam angles & frequencies on the rubber coated furuno 2kw transducer. Fishing for bottom dwelling demersal species between 40m to 400m will the furuno transducer give me a noticable advantage over the airmar low/high chirp ducer? What is the sensitivity ,crystal lay out, etc on the furuno transducers? I have read of good results with the chirp transducer on the 295 ,which also allows for the slewing of output frequencies.