Decided to try out Backtrack on my Ultra 2 with a short walk on a local beach. Set it going, and then after a mile or so tapped Retrace Steps and turned back, walking in my original steps in the sand. However the display is somewhat confusing, with the white arrow pointing roughly North-West and the white line pointing East of North. Following my original steps exactly, the two pointers never converged. The Apple Support page isn't totally clear on this, but am I right in thinking that I should follow the white line and ignore the arrow? Is my current position in the centre of the compass? Thanks
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