In Ivan's book he mentions that during 1965 he had to wear a special boot and had to adopt something of a different style. He had been riding with the screws still in place which caused him problems and during the winter of 1965/6 when he aggrevated the bone thru' excessive training he had them eventually taken out. When he got back to England at the start of the 1966 season he felt much fitter and ready to tackle the new season without the worries of 1965. He mentions, also, that during 1964 he had ridden in less meetings as was usual and dropped far more points than he had the season previous.