I dont have anything upfront. The unit was mounted on my center console. I usually just motor along until I see something and when just past it drop a bouy. Then just motor around and set up with the ipilot a rods length off when 10 feet or more deep or 20 feet or so when casting. I never did the upgrade. I called Humminbird and sent it in but after 2 weeks I called back and they said that I should have been told that it could take over a month to get it. I then demanded they send the original back to me asap. Thought that was a bit much to be without a transducer for over a month on a $900 fishfinder that I stretched the budget to buy.