Hello, I have a 798c SI unit and use it to look for shipwrecks. I would like to know how much better the 898 SI unit is and will it improve image resolution or depth of scans using SI. If you have any images with both units going over a structure or wreck at the same time, this would be ideal to evaluate the performance and help me to decide if I need an upgrade for the summer.
Thanks,
Lake Diver