Obviously I was being facetious but I don't want that particular fact to be forgotten.
With regard to modern 4-valvers, I don't think the number of valves per se is the issue. Weslakes and first generation Jawa 4-valves really didn't seem markedly different to the 2-valves (they sounded similar and track records were not being obliterated for instance) and still suited the tracks of the time. It's the evolution of them into the high revving laydowns that aren't suited to current tracks that sees us where we are now.