RR:

1. Relaxed vs. Unrelaxed Action is a concept used to explain when a tag of an already vulnerable runner vs. a tag of a missed base is practically appropriate.

Incorrect. The runner might not be vulnerable (he legally touched or retouched the base), but the defense thinks he missed it or left early and wants to appeal. Even if the runner is not vulnerable to being out on appeal, relaxed and unrelaxed action must be considered as the umpire seeks to identify an appeal.

2. Relaxed vs. Unrelaxed Action is NOT a concept to explain when a runner becomes vulnerable to appeal by rule —  i.e. it is NOT an interpretation of the appeal rules.

Continued...