I weigh 164 right now and currently trying out PF3. 2 scoops a day I found the effects on recovery to not be very noticeable. 3 scoops has been showing promise as recovery seems to have gone back up a bit similarly to how I felt running@ 4 scoops a day ( may actually work well for me @ 3 scoops a day, I never tried that dosing scheme though).
With PF3 I've been doing 1 scoop intra. 1 scoop post. 1 scoop last meal/shake of the day.