Don't go back Sazzle!!! Once you've started, keep it up. Monitor his drinks, in hot weather he will of course, have to drink more. But with the hot weather coming up, it's a great time to let him be underwear free! He's probably more aware of the wee, Hense weeing more.
I actually cannot remember what I did with Amelia, but I do know I watched how much she drank and when. I always took her for a wee before we left, as we got somewhere, and reminded her like a broken record!
She now goes by herself and is dry at night. I still have to take my bloody 4 year old in the night just so he doesn't wet the bed! It's hit and miss with him. From my very limited experience, the girls do tend to learn quicker. Jake was nearly 3 by the time he was dry. I hated potty training then! I'm much more relaxed this time round.
Again not much going on here. J leaves preschool in 2 weeks *sob sob* so we are going to Legoland for a couple of days to celebrate! A has her 27 month check which I can't be arsed with but I will take her.