Hi guys
I fought this exact same problem with the digitrol 10 readings going crazy and the frustrations that came trying to
come up with a fix. I tried every fix mentioned on this forum and experimented with other fixes with no luck. Fortunately, i had a friend that had the same problem and mounted his digitrol 10 transducer on the side of his boat. This action cured his problem of the readings going crazy. I copied his set up and also no longer have the
problem. Side mounting the transducer is a little more of an hassel because we made ours to swing upwards and lock in place for high speed movement, but well worth the effort. Thanks to this forum for allowing us to support each other. Good Luck!