carpediemracing, thanks for the detailed reply. I guess I now know to not be surprised if I see my 5-10sec wattage plateau over the next few years. I'm only a year into cycling so hopefully I've still got some easy gains coming my way. I'm certainly hoping for a 300w+ FTP at some point. You seem to do pretty well for your power (at least from what I can tell), so it's obvious numbers aren't everything.

I'd guess w/kg matter during the brief acceleration phase of the sprint. After the acceleration it's probably w/CdA and how long you can stand the pain.