[Karl]

it seems that every Luftwaffe section had its own "Erprobungskommando" to test the Me262:
-"General der Jagdflieger" (fighter): Erprobungskommando 262
-"General der Kampfflieger" (bomber): Erprobungskommando 51 ("Edelweiss")
-"General der Aufklärer" (reconnaissance): Erprobungskommando Braunegg
- General der Schlachtflieger" (close support/ground attack):Erprobungsschwarm Me 262 des Generals der Schlachtflieger. A Schwarm being a four aircraft formation.
Major Bruecker trained in Neuburg on Me262s belonging to IV/EKG1 (last entry in his Flugbuch is 14. February 1945, flying "9K+12W"). Later on, Major Bruecker joined JV44. He can be seen on some photos with other JV44 members at Munich-Riem in April 45.
Best regards, Karl