I have a 21' Hewescraft Riverrunner and I run the interior rivers as well as Price William Sound a couple times each year. I had a Humminbird 565 and I had problems keeping the bottom in the rivers as well as the sound, I chalked it up to having a jet and a transom mount transducer but Im not 100% sure that was really it.
For you guys running similar combinations, what are you running for a transducer and how much do you loose the bottom? Im looking at the Garmin 541s and I havent decided on a thru hull transducer (if it will work on an aluminum river boat without jacking up the welded bottom) or going back to a transom mount. Im looking for the pros and cons to both. Thanks for any help.