Offense appeals checked swing

[CecilOne]

Originally Posted by youngump

Why not? If I don't see a swing and the batter gets to first, I've always assumed I could fix that by asking the BU.

If you "don't see a swing" and did not call it a swing, then a BU can help.

"No, the offense cannot ask the umpire to get help on a check swing. As noted above, the umpire doesn't call a swing unless s/he sees a swing."
is about when it is called a swing by the PU.