Mounting a depth finder on sailboats
We always recommend gluing the transducer down as close to the center line as possible. Our transducers do not have tilted elements and that is why we recommend it. You can always use the keel offset feature to account for discrepancy here but as long as the angle is minimal it should be very close. I cannot stress enough how important testing is before gluing down. Use the petroleum jelly or bag of water method explained in the manual and make sure you are getting perfect readings before using a 2 part SLOW cure epoxy to adhere it. The slower curing the better as it allows tiny air bubbles to escape from the epoxy before it hardens.