I haven't had the "opportunity" to make this call yet either.
Now, seeing as I work mostly MS/F and Rec Ball, the first time I do get the "opportunity" to call this, I can just imagine the next thing I'm gonna hear will sound something like....."What? You've got to be kidding me?" Which I hope isn't bad enough to get a WHACK!
It may be the right call, but the fact that it's seldom used can always cause, ahem, momentary irritation......