Hi Chris,
..looks like you've been reading Holms' site perhaps... Lindenberger didn't stop being CO in September 44 AFAIK, he was always the ranking pilot in II./ JG 300 through this period but as a WWI aviator lacked experience on the Fw 190 and never led II./ JG 300 in the air..
for example he's mentioned here, flying a ground-strafing sortie on 24/01/45
http://falkeeins.blogspot.co.uk/2009...d-edition.html