No help here, my son will be 2 in two months and he still wants to nurse. It doesn't help that we have a 2 week old newborn in the house... I have always let my kids self-wean but this boy is nuts! Lol
I have always waited till my weaned. But I know the best way is to slowly cut out a feeding. Start with one that baby does not need as much. Sometimes it may take a day or two or a week to get use to that feeding being gone. Really depends on the child and how much the really want that one.
Drop one feeding per week. Good luck though, I'm trying to wean my 23 month old (I'm pregnant and it's absolutely killing me!) but she's so reluctant that it's a constant battle. I feel bad for weaning her before she's ready, but I've been having problems for two months now! (DD was nursing 6-8 times even at 21 months old, I dropped her down to 4, and then 3. We're struggling with dropping down to 2)
I gradually replaced breastfeedings with bottle feedings, then gradually switched the bottles from pumped breastmilk to whole milk (I mixed them and gradually upped the ratio). worked really easily for us.