Very Interesting thread, thanks to all concerned
Having realized long ago a study on the use of the Dornier Do 217 J as a night fighter by the Regia Aeronautica and about the only documented claim (the pdf of the article - in Italian - can be recovered here:
http://win.150gct.it/File150/Veltro/...ella_Notte.pdf ), I know how sparse and rare info on this topic can be.
For Håkan: the correct name of the Italian pilot is
Scagliarini, not Scagli
erini. Just to amend the fantastic info in your excellent site.