Oscars bottom two tips appeared one exactly a week apart, and came up really quickly, like within 10 days I think. His top front 2 though cut through within a day of each other but are slower in coming down, they are almost down now after about 2 weeks. And the 2 either side of the top front have cut through without any fuss or us even noticing at first! And looks like some bottom ones are set to cut soon too! He's getting them all at once lol