When Looking At Early Memorial Pennies, Abundant Polishing Marks! Common?

I have several 1960 large date and 1960-d small and large date Lincolns that absolutely shine like a car's headlights
. The lines are so persuasive that a hairline couldn't show if it wanted to. These are front and back. I can not see a mark on either side. I checked the building (all steps are full), the rims are perfect. All designs on the building are prominent. All letters are sharp. To the naked eye the coin shimmers. Under the microscope the lines jump out at you. Do the polishing marks or scratches determine if the coin grades coin grades ms-67+ or ms-68. I am telling you not one tiny mark. Woth submitting or not?. I know , I know pictures please. Working on that and coming soon to a theater near you. By the way I have researched for days about this subject and can't seem to settle on an answer