This is interesting. I just returned after 35 years on the couch.
I'm thinking that perhaps one's approach to the F200 should complement the individual's power and fatigue profile? I'm one of these take-your-notebook to practice folks. And, pretty geeked up about the modern technology. At my first TT this year the final 200M split on my 500M was much faster than any of my flying 200s. I get home from the track and out on my deserted training flats and see the same thing. I practice flying 400s and I'm still accelerating in them at 300M.
Sure, my base strength is very weak, but that is my profile, this "ability" (aka, lack of ability to do anything else any better) to maintain acceleration for a while. So I figure start earlier and my times dropped.
I did find this chart/calculator, and after putting in my numbers, it seemed to explain some things.
http://pcgtools.com/FP.aspx?preview=...ookieSupport=1
Back in the dream time I felt best in 20- to 40-second range. It appears that after 35 years off, and only a few months of training that profile is still hard wired. So that is what I'm thinking. Figure out where your sweet spot is and do that.