I have that article and all those documents it lists.
Understand though that lots of confusion has been created due to the FW190's system of using a "power egg". Many units still had older FW-190 variants on the books after July 1944 For example JG 5 operated some FW-190A3's until late in 1944.
http://www.ww2.dk/oob/bestand/jagd/bivjg5.htmlThe FW-190A3 mounting a power egg produced after July 1944 would be equipped with Erhöhte Notleistung für Jäger. Parts listing and Einbaugruppen after July 1944 would include Erhöhte Notleistung für Jäger as avalable for all FW-190A's no matter what variant.
That is not proof of operational use before July 1944.
Hmm, are you sure only Prototype for the 1943 1,65 ata fighter-version and not one little Productionline for that type in 1943?
Two different systems. One was approved and used for the bombenflugzeugen and Schlachtflugzeugen. The Jadg-einsatz does not seem to have widespread use until July 1944. I suspect that there was some operational testing and that the system was available in kit form for a short period of time before incorporation into serial production.
All the best,
Crumpp