[mbyron]

A central problem with the FYC for many umpires is that it is too easily misinterpreted:

1. The umpire is lousy with balls & strikes anyway, and it's written off as just another mistake. Participants interpret a FYC as a bad call by a lousy umpire.
2. The umpire uses the FYC as a crutch instead of employing good game management techniques. Participants interpret a FYC as a bad call by a lousy umpire with a temper.

To send the right message and use a FYC effectively, then, you must be a really good ball/strike umpire who doesn't miss pitches. And, you must be known to be such. A missed call then demands explanation, and then the explanation might be "FYC."

Also, you must be great at game management, and have a player go over the line anyway. Once everyone on the field sees such a player and is thinking "what an azz," a FYC from the umpire can actually be welcome.

For my part, I'm not there yet. So I don't use the FYC at any level.

The FYC probably retains some small place in amateur baseball, but the place is really small. Certainly I would not use it in HS ball (though I've been accused of it): for one thing, I'd be worried about being misinterpreted along the lines of the above. But also, I choose not to get into pissing contests with teenage boys.