My take on this, and we thought they kicked it at the time, and now I'm sure they did.
Penalty should have been enforced from spot of the foul. Under all-but-one principle. The basic spot was preceding spot because the run prior to the pass was part of the loose ball play, however, since the foul was behind the basic spot, enforce from the spot of the foul. Should have been 2nd and 21 from the 16.
Thanks guys, comments much appreciated.
