Van, Take my word...its a thing of beauty. SAY GOODBYE TO SURFACE CLUTTER AND ANY ADJUSTMENT WHATSOEVER FOREVER. I have had my unit for two seasons now. Wait till you turn it on! If you see a mark...its a fish. You get no junk readings.
Hint: When I had twin engines I had the transducer mounted between the two slightly off the keel. I had solid readings to about 40 knots. When I had a single, I had to move the transducer off to the side. Someone else positioned it too far outboard and I would loose a signal at speeds over 20. I just moved it yesterday, (again) closer to the keel but far enough away from the engine. If I were you I want that as close to the keel as possible.
Catchem' up buddy!