Thanks for the great discussion guys. Didn’t mean to revive a 7 year old thread, I was just being caught out that day when my GS mini didn’t work after I manually tuned in a higher VAPP at about 1200 feet. On another flight, I did the same with the VAPP but at TOD, and everything went as expected. Just wondering if there was any reason why it didn’t work in the first case (it definitely didn’t with my PM colleague concurring).