did you try something new with your vocal mixing this time?? i don't know if i just suddenly noticed this, but i could have sworn you never pan your vocals much of anywhere. in when i get older, they're super duper wide. it's awesome.
whenever i do doubles i always put them left and right. usually doubles will be in the choruses, and a few certain lines. and mostly if there are harmonies, i will use doubles. this song happens to use harmonies for almost every line. therefore, doubles for almost every line. there were actually some sections which went single (center) such as the first bridge. but at the last minute i discovered i hated it and doubled it. so almost the entire song is doubled. also simply has a lot of harmonies, which i always double left and right, but this particular song simply has a lot of harmonies which are all in right from the beginning