Nick,
Interesting article about NAG 6. I was hoping to find some information about Me 262 W.Nr. 111636.
See:
http://www.ghostbombers.com/dd.16-8-2007
W.Nr.111636 reported serviceable at 08.00 hrs. on 22 February.
On 24 March, Adjutant reported that WNr. 111636 had been taken over by NAG 6 and took off that day.
The plane was found at Twente in April 1945.
Jaap