ShakyKnees
New
The slightest motion sends it off in either direction by 15-20 degrees. Even walking carefully on flat ground I cannot perform a simple compass course; the compass turns every attempted course into a spasmodic sawtooth. The dampening effect of oil-filling a mechanical compass should be simulated in the compass display firmware. Perhaps a root-mean-squared dampening of data samples... whatever... I expect better from this very expensive device. I will borrow or rent a functional compass to complete my PADI navigation course. Very disappointed. The rest of the computer is quite nice.