I have quite a few guide trips each year where my client wants nothing more than to learn how to use what he has. I jump in their boat, go for a ride and watch what they do and find out what they think they see.
In random order, here is the most common things I observe:
1. partial interference with transducer. Set-up by whomever was done incorrectly
2. Settings are not set up for optimal view (screen speed/boat speed/sensitivity)
3. Lack of confidence
Its usually pretty quick you find out how fast and how people search. Some want to view at 1.5mph, some at 6mph, and others in between.I’ll adjust their screen sppen to the boat speed to get the clearest image. Then tweak the sensitivity up/down as needed.
Drive around, mark objects, fish, snags,….
My favorite is always spring walleyes when everyone thinks deep channels. We mark white streaks along the top or edge of a drop off. Spin the boat around and cast to them. Bang, pull up that first nice eye almost instantaneously and have the customer say “Well F-Me, that was easy”.