Hey Eddy,
The best thing I've done since getting back into decent shape is getting hooked up with an awesome track club here in KC.
For example: On 4/14/09 - I did a solo 8x400m -
1 min rest (70.77, 69.74, 70.43, 70.56, 71.73) 3 min rest (69.50, 72.00, 72.15)
Then yesterday I did an 8x400m with some club guys:
(2min rest) 67.81, 67.65, 66.78, 66.85, 67.40, 67.13 – (3min rest) 67.21, 66.29
The second thing is finding that there's a belief mechanism involved. You've got to believe. It's amazing how much the brain remembers what it's like to race after 16+ years of doing virtually no running. Since I've raced at the level of sub-4 before, I'm finding the barriers to be more physiological, rather than psychological. Although I'm 37, I feel like I still have the ability of a 20-21 year old to tear it up. Age, to me at this point is not a factor.
I'm intrigued by your analysis in that you're zeroing in on the last 600m. You're saying that once you past the back straight... you're gunning for the finish. I like this. It helps put it into perspective.
Racing on Friday... the 1500m... then Sunday the 4 mile Trolley run. I'll post workouts and results later. Bottom line... you're figuring it out. You've got the talent and ability to bust 4. It's simply a question of belief. 4:01 is demonstrable to me. Enjoy your youth.
Best Regards, Ron