Went today with my Elite 7 HDI. My unit seems to work for a time , then, quit.....I have NEVER gotten pictures like I have seen on this forum. Simulator looks great, not in real time. Lowrance sent me a new HDI transducer. I can't tell the difference.Sometimes the unit does not show anything, regardless of speed or settings. Tried different boat speeds today, same result. I spent to much money to have a unit that does not perform up to par. At this moment and according to my past experiences I would not buy DI again..... I can't see where it is beneficial. I would just as soon have 83/200 regular 2D. I know DI can be a big help after seeing other post on this forum. This unit is out of warranty, so if I sent it back and they offered and upgrade, I don't know what I would get. Maybe I would be better off with a x 510 c like I used to have. I am really disgusted and will not give any more big money and take a chance that that unit won't work . Anyone have any ideas that I haven't tried.....Thanks guys....crappie1133