Never ceases to amaze me how these companies want to sell you a product but don't want to help you learn how to use it. All you ever get from them after your purchase is look at this manuel or google it or play with it or ask someone else. Reminds me a lot of my former employer who many times over the years when new tech stuff would come around would sidestep and do a end-around getting you to learn it where they could weasel out of paying you for your time to learn it. I'm not the best on this high tech stuff and I will bet there are others in the same boat. I've several friends who absolutely refuse to buy new depth finders and fishing related products just because you can't get any training(Hands On) Do the companies not realize the sales they are missing out on with these people? I've heard many say they would pay as much as the unit itself if they could just go to class somewhere within a day drive of where they live just to learn. That takes in a lot of territory and a lot of fisherman. and here we are again on the eve of the holiday season with guys and gals soon to be unwrapping new hardware only to be able to operate it to 50% capacity or just collect dust on the bedroom floor. Merry Christmas and sorry for the vent. Hope the new year brings heavy stringers to all.