Mine has been pretty decent about returning to a marked spot. But, the response time is a bit slow. I might get past the brush pile while my cursor position is updating. So, I can find the spots, but I might have to make a pass or two.

I generally drop a marker bouy when I am close anyway. Then a second marker bouy right on top of the spot.

I don't troll, so the updating speed has not been a huge issue for me.

Dayton