Well this is my second boat and second depth meter. And I have to say they both SUCK! As soon as you are moving fast the turbulance cuases the screen to blink and not get a reading. I had the Hummingbird on my Sportster and have the Hawkeye on my Challenger. I have tried moving it higher/lower, change angle etc and nothing seems to work. Try maybe a thru hull type you may have better luck. The only good thing about the Hawkeye is it has the Air and Water temperature feature, at least that works