I understand that the new HB Helix units have used internal GPS for the last few years. Am I mistaken in thinking that if I mark a brushpile I see on the unit, then go back to look at it with DI or sonar, isn't it going to be off by the distance between the unit and the transducer along with which direction I was moving? Currently my GPS external puck is directly above the transducer. Looking to upgrade to the new Helix but this question lingers.


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