Double 500cc World Champion Barry Sheene told me it needed more concentration and resolve to prevent the mind wandering as lap after lap all that was in front of you was empty tarmac with your pity board the only reality check to the real world. It was important to keep up your lap times at a constant fast pace, not only to prevent your pursuers to get a sniff of catching you but also to keep your mind focused. He told me it was so easy to let those lap times drop and his mind would start to wander towards the most bizarre thoughts that had absolutely nothing to do with Grand Prix motorcycle racing. Where have I left my car keys, what times the flight home tonight and what have we got for dinner were the most common. In those days such was the diversity of the field and the machinery they were riding, lapping backmarkers was a welcome exercise to sharpen the mind and bring you back to reality.