[Zippideedooda]

Woodcote, Thanks for this suggestion. I have never thought or heard of cleaning the sensors before, but it makes a lot of sense. I will give this a try. I have heard where the guide flag on the car can knock a sensor out of alinement if the guide is too deep in the slot.
Your other observation could be happening here as well. My track is exposed to a window that sunlight streams in during the day and can illuminate the two LC's that are giving me trouble. It could be they work correctly on cloudy days or when we are running at night. I will have to take note of this, to see if this is a possibility. Great suggestions!

I am also grateful for your articles on how to run races and setups in Arc Pro. Eagerly awaiting more follow up articles.