Loss of Down on Try

[snrmike]

I have more info on this ruling as well.

This is from Bob Parker, two-time IHSAA State Finals Referee and IHSAA interpreter:

Acceptance of a penalty that includes LOD against A on a try results in the try being canceled without replay.
8-3-4. (Just as stated by "nvfoa15")

The enforcement of OPI is controlled by the "all-but-one" principle. That dictates that enforcement is from the previous spot, since the foul is, by definition, committed during a loose ball play. 10-4-2b.

The only provision for special enforcement relating to a try is for a foul by B on a successful try. 10-10-5-1d. Hope this helps.