Looked back through my book I kept for that period out of interest ,and it looks like the first time I got the record was 37.7 ,then 37.2 .next time it was a 36.4 ,then the last time was a 35.9 ,all on different days over a period from October 69 to March 70 ,had another day in that period as well ,it had rained and the track was not as good still managed a 37.0