Thanks for posting that. I looked at the 1961 Rhydymwyn prog. and there was my old friend Mike G Smith from Sutton Coldfield, listed on his Triumph Tiger Cub. That would have been three years before we met at Oulton Park, when he was on a Greeves Silverstone, and I was on a Tiger Grub.
It all seems so very long ago. Well, it was more than half a century!