I've given this opinion before:
If you have a group of coins such as these study them to sharpen your grading skills.
Pick out the best and the worst (of a type such as this group contains.)
Then the next best and the next worse.
Line them up from lowest condition to highest condition.
Train your eyes to see what is in front of you.
THEN, use your favorite grading guide to assign the grade.
An educational exercise awaits you.