Hi Robin, We had the ACOC AGM last night up in London, but Steve was not able to attend. No doubt he will be investigating the supply of cupped washers following your request. At the meeting it was made clear that one of the Club's priorities is to enable members to keep their ACs on the road. Obviously where components are being made commercially, there is no need for us to spend club funds on replicating those parts. However if specific parts are not available (as has happened with 3000ME gears, Vintage water pump drive bushes, and many other parts) the ACOC is prepared to commission a batch for the benefit of its members. Steve is the best man to speak to, but I am always happy to help if needed. Andy