I could be wrong but as far as I am aware the stickers were mainly used on the bats for their sponsored players - I guess the chosen pros likes the new stickers as much as we all seem to! Therefore most were reserved for the pros. So some of the bats acquired by the likes of mike were performance bats!
The cadbury stickers are not generally easy to get hold of as newbery do not give them out to everyone due to their very limited numbers and they do not want people sticking them on planks! That's how I understand it anyway but mike and others would have a better idea!!