How is the image clarity for older generations vs the g3/g4 units? I have a 9" G4N MSI at my helm and I want to share the transducer with a larger 10-12" screen. Considering a used unit from here to save a few bucks. If I pick up an older generation will I loose clarity. I don't think the resolution on any of them have changed from the generations, perhaps just the signal processing has improved. Like to here thoughts from the experts.
Aaron