Well I have a garmin 54x combo, the one with the cheaper display. Not once have I thought I needed the fancier higher definition display.
The GPS works well and is easy to use.
The sonar reports lots of seaweed as fish.
Just keep in mind that I don't have a lot of experience. But if I were to do it again I would probably go with a garmin gps and a better separate sonar unit if you want to use the sonar for finding fish. It works great for just saying how deep it is. Also, again, maybe I just don't have it set up correctly and read it well.
rkc
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Sorry to say that I no longer have a 1984 V20 :(
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