Thanks for your post, fortissimo!!
I can now confirm that the Grupo 5 Skyhawks re-deployed to their peace-time base between June 20th and 26th. Daggers from one of the Squadrons of Grupo 6, were completly withdrawn by June 26th and back in Tandil. May be a few planes of both types remained down south for something like a week.
My guess, is that around June 18th, the FAS decided itīd start to retreat its remainig assets to recover as fast as possible, its fighting capacity. This could only be achieved by going back to peace-time routine, at least in a roulement basis. It appears to be obvious that both pilots and commanding officers needed to rest and re-think their whole experience at war, planes needed to be either repaired or upgraded, supporting lines needed to be re-stablished, and so on.
If this "strategic retreat" of late June was caused by the need to de-escalate the conflict, or by another set of aims, I still canīt tell.
Christian