DS is 2.75 yo and has been doing AWESOME with potty training. He hasn’t had an accident in over a month and is able to pull down his pants and go without asking for help. He still needs help wiping and pulling his pants up. He wakes up dry from nap like 99% of the time and is dry in the morning like 90% of the time (wet once in the last 2 weeks). He uses a little potty most of the time, but will go on the big one. He has a step stool that he knows how to get out and he also knows how to put the little seat down as it’s built into the regular seat.
Question 1: when did you stop using pull ups overnight?
Question 2: when did you put the little potty away and transition to the big potty full time?

I don't want to mess with a good thing but I also want him to get used to the real potty