Ben, the problem I had was the units, (I had 3 different top of the line units) would all lose the signal while on plane. Didn't matter where you put the ducer. Other times, they would just shut themselves off completely and power button wouldn't work until you took the unit off the mount and then put it back on! The last unit I had didn't do these things, but it would read off, all the time. I would be in 12 feet of water. I knew this from sight and memory! You could see it was 12 feet, the unit would read 6 feet or 24 feet, it was doubling or cuting in half the actual readings. It didn't matter if I adjusted the sensitivity or not. Just not reliable in a tourney situation. Fine for recreational anglers that aren't as demanding, but when money is on the line, you need your equipment to work as designed, every time, all day long. Also, when I tried to contact their tech support, I couldn't get anyone, and nobody returned my e-mails or voicemails. Just my experience. I know others love 'Birds, and perhaps their new units have the bugs worked out. I wish you the best with yours. But I will stay with either Lowrance or Garmin from now on. Lowrance is starting down the same road though. I've replaced 3 Eagles in 1 season, and Buzz's X-15 died too. We'll see if the other lasts. His LMS 160 is tough as nails though!