As a gentleman of a certain age I recall doing my old BFT in boots. One and a half miles in fifteen minutes squadded and then the same again - best individual effort - within eleven and a half minutes. I think you were awarded an extra minute at age 30, and 30 seconds at age 35 or something like that. If you were over 40 you had a week or two to get round. Does anyone remember the exact timings that were used 'back in the day'?