Pete, my question was not meant as a dig at you, there are lots of different questions to ask to get to the bottom of a problem that we cannot see. Pictures would be nice, but we also need more information as to the process and materials involved etc.Incidentally, you are not far from me, maybe we could meet up some time for a chat.
Pete, I am based in Deal, I travel over to Hartsdown quite a lot for Thanet table tennis league.