If used in this context, I would tend to agree...BUT too often we call an obvious balk, obvious batter interference, or something along those lines and all we hear are "quit making it about you, quit inserting yourself into the game, they didn't come here to watch you" BS, then tie it up w/ "the best ones are the ones you don't notice" that's when I disagree w/ that saying.
R2, R3, 2out. Batter hits a slow ground ball to F5. R3, off on the swing, touches home plate before R2 is tagged out at third base. The batter runner has not yet reached first base. Does the run score?
For me, I wouldn't wear this CP if I got it for free. I feel that if Gerry Davis put his name on it that he should also wear it. To my knowledge, I don't think he wears what he endorses. For that reason. No thanks.
MLBUM is by far, the best bang for your buck at around $10 w/o shipping. MLBUM only hits certain rules and situations, not all. PBUC is the same as MLBUM, with a bit more detail. Wendelstedt is basically a rule book w/ interpretations and also the most expensive...it's likely the guides they use at umpire school. So...it's up to you. For me, I've found basically everything I've ever needed in the MLBUM or PBUC. Wendelstedt covers MLBUM, PBUC, and then some...the deep cuts if you will. Good luck.