So what do I count down to. The approximate 6 weeks to the first of my 16 runs at Silverstone or the 8 months until the last one at Birmingham? When I started my training back in November I had a simple plan. I had to run a minimum of 3 miles whenever I went out. In December this changed to 4 miles and now my minimum distance is 5 miles. I may increase this to 6 but won't make it any more than that. My long run is…