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I am showing my ignorance and would appreciate some wisdom from the old hands. I use a smallish fizz boat for fishing fun - not too many miles away from land typically! It is a US built boat and came with some gear. I added a GPS/Plotter together with sounders etc and rarely even look at the magnetic compass to be honest. Given that the compass is a US-fitted model it may perhaps have been balanced for that particular compass zone and obviously not the South Pacific. I know that small handheld dry compasses are balanced according to the various zones they will operate in to stop the needle dipping significantly and catching but are fluid filled compasses similarly vulnerable?? In simple terms, if I had to rely on this compass is it OK here 'downunder' where the Southern bias of the magnetic field is higher?
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