1982 Jefferson Reverse Die Varieties?

"Wheezy, what an interesting post! After reading this I pulled out my Nagengast book and read about the design changes. You are right. Among other changes, the letters were moved farther away from the rim on the reverse of 1982. I never knew this. Thanks! But that's not all! According to the book, the same is true for the obverse. Among other design strengthening changes, the letters were again moved farther away from the rim on the obverse of 1982. Wheezy, check out your obverses also!"

This means a mule is possible.

These aren't uncommon on moderns and probably (usually) occur at the
beginning of the year when a technician gets confused and fails to
change one of the dies (normally reverse).

It would really be something to find a 1971 with a 1970 reverse. And the value of a 1970 D with a 1971 6 step reverse would be absolutely through the roof as this is a very difficult nickel to find with 4 or more steps. Now these would be VERY OBVIOUS to detect too.
I never saw one myself, Although, I don't run across many 1971 nickels either. I've seen a good number of 1970 D 1970 S and 1971 D nickels.