I'm curious as to reviews and effectiveness out in the real world. Its been out for a little while now, surely someone has tried it.
CharlieI can tell you this much in the shallow water they work fantastic. But the drawback they dont work in the deeper water. When I was told before the canal clean up after Ike the folks were going to use Hummingbird sounders to locate the junk underwater and I laughed out loud. After watching them work (hummingbirds) I was amazed. In 10 ft of water you could see 2X4' s laying on the bottom. They work great at the jetties you can identify every rock. They are unbelieveable in water say to maybe 50, 75 ft. But thats it.