I must of followed you after, as I couldn't win diddly squat although I never knew much about emptiers back then.
The only emptier I had was a key I bought of a mate, the truly unlawfully way of "emptying" , but that's another story!!
Use to have a refill key so I could check the likes of £10 wink wink, Big 10, Double Cash and 5 times cash to see how full the hopper was. Never go in on refill day lol