I absolutely agree with this.
I guess if you have experience with IMAGING and or Sonars that's one thing, it's fine but if you want to run thru ALL of the settings, see the effects and try different settings LEAVE them home at least one trip.
If someone goes out with me to LEARN, then there's no fishing involved to distract picking up new ideas, settings and info.
Find out the inner workings and setting FIRST - then fish the fishing spots you didn't know about!

