Providing some reality....
I fish a HDS-7. I have a friend with a HB 1198. We spent some time running the same brushpiles, flats, bridge pilings, timber hunting new places to fish. While there are things that I really liked about the HB (bigger screen among others), there were just as many things he liked about my Low (perceived better screen resolution). The fact is that each has it's advantages and disadvantages. I was truly thinking about switching over before we spent those hours running side-by-side. Now I know there isn't a huge overall difference between them. It's like Ford and Chevy. There are Ford people and there are Chevy people.
Doesn't matter what you have, if you don't learn to use and interpret it then you might as well have nothing at all.
Huey

pm sent .

Would like to find a really good video on setting up a Hummingbird sonar. Something like the Idiots Guide to Depthfinders.

I may make a video soon, so be on the lookout.

I have read many post about locating brush piles using waypoints and sometimes it is tough to do. Something to consider. My boat is 22 ft, my transducers are on the transom 11 feet from the console. My si di hd unit is on the console. This means i may be at least 11 ft off anytime. Add in the manufactures 3 meters (9ft)
accuracy. Now i can be off 20ft in any direction, at anytime. I fine it is helpfull to approach a BP from the same direction you were traveling when you established, wind permitting. If I am have difficulty finding one of my BP I will go over my waypoint at max zoom and drop a marker. Then run a pattern over the area with the Si unit, using the marker bouy as a reference. This usually does the job. Another thing to consider is the BP looks different approached from different directions. One of the GPS antenas located over the transducer should cut my error to 9 ft.
My 2 cents worth

Gene