Tony is very slow with emails but he will look after you. I bought a Panzer IV off him recently that had a plastic gearbox instead of the metal one advertised and he offered to replcace the tank for me but to save on postage I asked him to send me a metal gearbox and he was fine with that.

On of the best acessories I picked up so far is an Ansmann peak charger. You don't have any worries with trying to estimate when the battery's fully charged and it does a full charge of 2000mAh battery in about 20 minutes. I don't really trust the stock Heng Long charger either, it has firestarter written all over it.