In going around a mark in no wind, you notice that you are (very very slowly) drifting sideways towards it.

Is it legal to push the mark out of the way while touching the anchor line only, not the mark itself? For example, by taking your hiking stick off, and pushing gently on the line beneath the water.

It seems unsportsmanlike, but my understanding is that the line attached to the mark is not considered part of the mark.