Peter:
http://www.luftwaffe-experten.org/fo...showtopic=9528
I beleive, during summer 1943, main task for Z-STaffel./EKdo25 was WGr21 attacks to split the pulks. It seems, they have no confirmed claims during that period, but many many Jager claims were made after Viermots were damaged by rockets of Bf110/Me410's of that Staffel.
For example, Hptm. Tratt had his 2 claims with EKdo25 flying Fw190 with Erpr.St./JG1, but after he turmed back to Z Staffel/EKdo25, he had no more claims till he was transferred to command II./ZG26.