I was told by a Typhoon test pilot (what does he know?) that only the Typhoon tail produces lift.
What I do know is that my wonderful A330 stuffs 5 tonnes of fuel into the tail for the cruise to force the tail to produce less down-force (I didn't say 'lift'). This reduces the 'apparent all-up weight'. That reduces drag.
So, aft CG reduces drag.
It's got nothing to do with stalling.
QED