I am looking to replace my depth sounder with a Garmin Inteliducer which will connect directly into my Garmin 441 Chartplotter. When speaking with Garmin Support, they asked me what my degree of deadrise is so that I can get the correct unit. I have looked through all my records and boat docs, but I see nothing on the degree of deadrise for a 1984 ODay 34. Has anyone dealt with this issue and can you help me? thanks Corey