Hi Raimo,
I am interested in ZG 76 for some time now, and also met Mr.Schlossstein.
I may tell you following:
Hannig is totally wrong! His arrival to GRuppe may be OK, in December they were preparing to retrain to Fw 190s, but his info about already suffered losses due to Me 410 attacks is wrong.
II./ZG 76 became ONLY IV./JG 54. Therefore the Fw 190s wore the wave 4th Gruppe sing on fuselage.
It was ZG 76 until February 1945, since then it was JG 54. Disbanded beginning April 1945 partially due to heavy losses. March 23, 1945 the taking off Fw 190s were bounced by P-51 Mustangs while they were taking off with bombs. Quite a losses!
So Mr. Schlossstein is mostly right on what he wrote. However he does not remember much of the ZG 76 and JG 54 command he hold. Nothing concrete...
If you have more questions, Ask!
regards
Peter
http://www.airwarsk.sk/ZG76