This is a great shot of hydrilla on Lake Eufaula in shallow water.

It would show you that detail for sure. I have pictures on old locks, old hydro-electric dams, underwater pond dams etc. Wing dams should show well since rock structures really pop with Side Imaging.
Send me an email to [email protected] and I will send you a couple of examples.

Lowrance has been telling everyone they have SI for 2 years now. So now they are either 1. Trying to get everone to by a HDS unit with promises of SI add on AND hurt Hbird’s sales or 2. They finally have it.
If you know anything about patent applications you know it’s a long hard process. There is no “Final” application.
You can apply everytime one bid gets rejected. SI goes back a lot farther than SIMRAD so if anyone’s infringing it would be them. Also, if Hbird has been infringing on their patent why didn’t they attack them 3 years ago.
A rep is going to tell you what you want to hear and what he wants you to thinK. He’s a SALESMAN.
Time will tell…………..