1960 A10 and 1961 A7. Just bought new timing cover and primary gaskets., from a supplier some love and some hate but local to me and so when they did not arrive promptly, I want a collected them. Anyway they seam too large/wide lots of over lap on the outside. I have read welsher that the mating surfaces can be irregular, so is this what suppliers are now doing to get around it. Do I just go around with a Stanley blade after its all done up and proved oil tight to clean up the excess (note it is already done up on the A7 and oil tight after a short ride).