I’m just wondering what’s the best way to address my sons progression in his swimming lessons. He’s at stage 4. He’s arguable the best swimmer in the group and has been for a while. However, other children who can’t swim as well as him are being moved up. I’m not a swim instructor so appreciate there are things they look for but even other parents in the group are baffled at it. He’s well behaved and works hard. So it’s not his attitude. I don’t want to come across as rude and tell them how to do their job but it doesn’t make sense to me.