I'm sorry but you are incorrect Soren, there were no a-2's in JG 7 in April of 45 delegated out to the bomber units. there were more than 55 jets in the air on April 10th, as JG 7 was not alone in the air.
remember Galland was not at the forefront of tech for JG 7 nor was he a pilot within that JG, he had nothing to do with it's operations. he was always given second/third hand info on the defense of the Reich and had to trust that info no-matter how inaaccurate or delicate it was to be.