I have the MG and can spotlock next to bridge pilings or channel markers and move very little. I bought before MK upgraded theirs. Next 1 I get will likely be a Terrova only for the added feature of screen on remote showing what your doing. I dont link tm to graphs so no need to worry about that on my side.
On the video it appears they anchored the MG away from the marker. Once both motors settle they both are dang good.