Well, that's weird. I understand the confusion now. I though I had posted something right after your first one but I guess I did not save it. Basically, I was saying that I would post the question over at LEMB and, being a bit of a dick, I pointed out the typo where you said JG 52 on your text but, correctly, JG 51 in your title.
Peter Evans, who hosts LEMB replied saying "Other than a photo of his Bf109F-2, WNr.3678 coded "Yellow 5" of 4./JG51 in "JG51, volume 2" by M.Murawski [Kagero, 2009] I've not found any sign of his mount from late-1944... still on the hunt though... "