Where can I find this ruling

10-2-3l.

Thanks Matt, I was looking at 10-1-4a.

matts answer is from the case book (just in case that wasn't clear) and it's almost the exact play.

You get the same general answer with bases loaded and 2 outs but you can determine in HS if the catcher would have made a play on any runner (probably the force at home or the BR, of course).

There is even an advanced mechanic that says if the BU is going to call the swing he should just do it without the PU asking. This needs to be pre-gamed but does work. It happened at the MLB level a few years ago and the appeal came very late. It was ugly and they adapted the mechanics. 

Thanks guys...this is the place to come!!!!!!

MST is that advanced mechanic good for HS? Have you used this in your pregame?

I have. When you need it, it's a lifesaver.

I wouldn't use it in HS.  Unlike other codes, FED does not require the PU to ask for help on a half-swing (although I always do, if asked).

Thank you Gentlemen!!!

Valid point Dash, and I always ask too. 

If the PU doesn't immediately go to the BU for a ruling, the BU should back him up and call it a ball as well.  That would avoid this SS.

I disagree, it will cause a SS but either the PU should ask himself, or the BU should step in. The only time this wouldn't be true may be HS, but then the PU can just refuse to ask. After all is said and done, the batter has to know that he may liable to a D3K so he needs to take off.