Thank you so much everyone. I had no idea that pull-ups are not as absorbent as diapers, so now I get why people continue to use diapers for naps/overnight. Ok - so I will not buy pullups as they sound like an unnecessary transition that often prolongs the process. I have HA trainer undies for day, and we'll keep the dipes for naps/overnight. I just am not sure about at school. Do I just send DC to school (2 mornings/week) in the HA trainer undies and hope for the best?