It certainly is a tough challenge, i felt the key for me was maintaining my 800m speed with decent endurance. Running 59/60 per 400 is much more palatable when you have 1.48 800 pace to draw off. My goal was to have good 5k endurance (14.28 in Armagh) into Spring whilst still having good speed (1.52 indoors). If i achieved those goals I knew I had a good 1500/Mile in the Middle. Those that have tried in recent years seemed to not have enough leg speed and sub4 mile pace was too close to their maximum to be able to cruise the first 2 laps. Perfect conditions and well paced race are also a factor which I got in Nashville. Be interesting to see if another name can be added to the list!!!!
TW