I upgraded my fish finder from a Humminbird 400tx (1990's technology) to a Lowrance Elite 9 Ti2. Wow!!! It is a serious upgrade and I am very pleased so far, but have a lot to learn.
JayW
Awesome unit right there, had two on my last rig and will have 2 on my current rig in the near future. Don't get much more detailed or easy to use for the $$$
...and nothing better than having a good mentor fast-track you into their operation.