Thank You Toby for your reply. More than a dozen have now taken the wrong alternate that I spoke of. I'm really scared, Sheila will be hitting that section today...I'm crossing my fingers that she makes the correct choice and stays in map contact. She's an awesome navigator so she should do fine.
Likewise, I hope that everyone finishes w/o missing sections of the route. The TD has so many junctions; staying on track has got to be tricky.