The ‘recreated’ KLG M50 is interesting to Scott owners as it is a longer reach than all the others. KLG were taken over by Smiths Industries in 1927, and Kenelm Lee Guinness committed suicide in 1937. Vintage Bugatti owners were desperate for long reach 18mm plugs, and so Tim Green was able to purchase the KLG tooling from the remains of Smiths Industries, and have a batch of the M50 plugs made. If fitting them to a Scott that has done any mileage on the shorter reach plugs it will be necessary to run an 18mm tap down the plug hole in the cylinder head to clear carbon deposits from the previously unused threads. Apart from the spark being less shrouded, the new plugs will give a slight increase in compression too !