Sorry to pass on misinformation JS, I must speak sharply to my source!
Someone will probably be able to supply accurate details of the machine sold to Bruno Perlinski a year or so back. This was said to have been the Dave Watson Commando that Gary had ridden with such success, and was supposed to have been a 750 engine, but in the light of recent posts this would seem most likely to be again incorrect.
Whatever the engine size, the undisputable fact is - the machine was/is very quick, and Gary is an extremely capable rider. Rider and machine together are something special to see, especially when stiff opposition brings out the best of both