D.P.
I trained my boys naked from the waist down. It might sound strange, but it worked. There was no delay getting them on the potty when they had to go. We did not have to fumble with clothes!! I found when they transitioned into underwear I could not use briefs. I think the tighness of a brief replicated the feeling of a diaper. So we used loose fitting boxers for a few weeks that then went into briefs. Good Luck!