Yes, it would be a violation of rule 12. While one pwrson doing it might not affect things, imagine if everyone starting doing it.
The approach would get covered with marks, so a build up would start. Plus it would defeat the purpose, you'd lose track of which mark is yours.
Also erasing would be even worse, because the rubber residue from the eraser would cause sticking.
There is no need to mark the lane, just count how many boards you are from the center dot and your there.
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