I have a question that's been nagging me for a bit.
Pre-peak my FTP was estimated at 260 from a variety of sources (NP for races, 2x20' tests, 3' test).
I peaked and raced a 22 mile hilly RR, NP 279 for the 1 hour race. Normally I wouldn't bother about ftp, but on the finishing climb I had a peak 10' of 317 watts with a 5' PR of 325 in the first five minutes, previous was 315.
What the hell was going on? 10' seems way too long for VO2 kind of power.