Fashing back to prior 2006, illegal touching then was enforced from the spot of the pass and if said pass was touched beyond the LOS by an ineligible, it was OPI - which then carried a loss of down. We then tweaked the act of illegally touching the ball by an ineligible player to carry the same penalty whether the act occurred behind, in or beyond the LOS. The enforcement spot was then moved from the illegal forward pas family (end of run) to the loose ball family (previous spot). I understand their rationale on this.