I have another review of the Furuno FCV-620 posted on my website here:
http://www.marine-electronics-reviews.com/furuno-fcv620.html
You will find several photos and my opinions of this machine too. I agree with the majority of Malcolm's comments on this sounder too, except one. The fact that this fishfinder will work at 22 knots is not that astounding. Most any good quality bottom machine should do this as long as the transducer is properly installed, emphasis on properly.
