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Hello friends, I recently upgraded my GPS/Sonar from the Raymarine E7 (flawless for ten years) to the Raymarine Axiom 9+ with the RV100 tranducer. I am having issues with it not being able to keep a lock on the bottom at speed. The transducer (much larger than the one for the E7) is located exactly where the last one was. I noticed at speed the transducer (transom mount on the starboard side of the outboard) is barely in the water. It looks like I could lower it another inch or so but not sure that would make any difference. Anyone else have this issue and was able to find a solution? Thanks in advance!