As I was looking at both Hummingbird and Lowrance models this weekend due to the fact all my electronics are fried, I was able to get reps to discus both and the capabilities of both. Since both have SI, I didn’t see a difference in the quality other than slight clarity on the Lowrance models.
However for what I want to do it is cheaper to go HB and get a 788 and match it with another cheaper HB that can connect via Interlink system. This gives me GPS and Waypoints matched on both, without breaking the bank. This set up also gives you SI, and DI capabilities. With DI you can build that picture of a specific piece of structure as you criss cross over it a few times and then SI to find those brush piles without driving directly over them.
I have always been a Lowrance guy and I do like the HDS systems they have, just don’t want to spend that kind of money when I can get what I want for a lot less, same goes for HB high ends as well. Bells and whistles are nice but I just want to catch more fish and don’t need the extras with the additional cost that comes with them.
If you learn your electronics no matter what brand it is you will be successful. Period.
But that is just my opinion, and I am no pro.