remember this, just 20 years ago, PLAAF still flying Mig-19,Mig-21 and even mig-17,according to the US,average pilots has only 200 hr. of flying time! that is below the USAF minimum 350(?) hr.by contrast,PAF pilot honed by US and british pilots,participate in Red Flag exercise and acted as co intructor in gulf region and saude arabia AF and Iran (before the 79's revolution).
I'm well aware of the PAF's good pilot real world record and their comprehensive exercise participation.
But I'd still like to see a source, just for posterity's sake. Well, mostly because this claim you're making is quite large.
As big as the one where we heard turkish F-4Es wiping the floor with PLAAF Su-27s a few years ago, tbh.