I just got a Humminbird 998 with si and a navionics chip. I took it to a local lake here in KC just to make sure everything was working and then last week spent a day on Melvern to mark some brushpiles because I have a three day trip there in about a week. I haven't been on that lake much but spent a day there last year looking for brush with my regular sonar with limited success. I was excited to try out the Humminbird because I thought I could cover a much larger swath. I have to say that I didn't find anything on the si, only the di and sonar. I guess I was looking for somthing to really stand out and I just didn't see anything like that. Several times I saw something on si that I thought might be structure and then would try to locate it with my di but didn't have any success. I guess my question is, if I find something on si will it be obvious or not? What would be the best way of confirming that something I see on si is for real?