 After this, Baltabol lost interest in the project, telling Sack that his AS-6 was dangerous and to stop flight testing until after wind tunnel testing and necessary modifications could be made.Sack subsequently went back to the drawing board and made further modifications to the aircraft.In the summer of 1944, Jagdgeschwader 400 relocated to Brandis, flying the new Messerschmitt Me 163B Komet.