3 man mechanics, rotation on homerun

[shipwreck]

Where in any 3 man mechanics manuals does it state what should be the rotation on a home run when the 1BU starts on the line? I was working our State HS tourney in the Fall. I was PU on a home run and stayed home to make sure batter/runner touched 3rd and home. After the game I was told I needed to rotate to third and 1BU would rotate home, just as if it wasn't a home run. I have been watching quite a few NCAA tourney games, and many do this but some have not been doing this. It makes sense to do it by why are there some that aren't? Does any manual give exact directives on this? Dave