FTP drop during build: Fatigued or lack of progessive stimulus and does VO2max block lead to "overtesting"?

[kallepult]

Basically a couple of weeks with workouts having progressively longer VO2max intervals. Try this thread: Short intense period before starting base? Chad's short FTP boost plan
and bbarrera’s post 23 in this thread: VO2 % reduction - whilst still acquiring the right intensity and training effect - #23 by bbarrera