Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
It appears that Registrar Tools is using only the current date to determine whether or not the youth is over age. Shouldn’t it be using the greater of current date and start of next charter period? My registrar checked a unit yesterday and found one over age youth (11th birthday last January). Today there are two over age because it’s the birthday of a second one!
I wonder if Internet Rechartering does this the same way.