I’m not sure about the whole MS60 full step thing. I am not a professional grader. I’m not even an amateur grader. Just a collector. I would say that a nickel could have full steps regardless of condition of the rest of the coin. If they are undamaged then it is what it is. However, this is highly unlikely as the steps are one of the most vulnerable spots on a nickel. All it takes is one hit that merges two or more steps together and the full step designation is out the window. That is presuming that they were full steps to begin with. Early nickels had a lot of striking issues. The metal is extremely hard which makes the striking process very difficult. This is a quote from Bernard Nagengasts book. “The Jefferson Nickel design suffers from an inherent flaw. The highest point on the obverse, Jefferson’s hair above his ear, was set exactly opposite the step area on the reverse. Unless die pressure was high, the distance between dies at the lowest point of travel and/ or the hair at the ear would not be fully struck up.” Full step nickels carry a premium for the early years (actually all years). Some years have almost no specimens with steps. These older coins with full steps can get quite pricey. It has also been noted that dies were wiped with oily rags and a combination of the oil, metal dust, lint, grease, and other things create a sort of paste that would get into the recessed parts of the dies creating a strike through issue. This would hinder the details in the strike as well. Several hub and die improvements have been made since the early days. I think starting around 1987, the step detail got much better. Full step coins are almost common place now. Hope this helps a little. P.S. Thanks to my brother Hoghead.