Hammock switching during reintroductions

Hi, all!

I am wondering which is the best method to switch hammocks between cages in the reintroduction period with a new and clean one.

Do you just swap the dirty one with a new one and keep the rotation going? You add one or two clean ones in the rotation without removing the old ones for a few days? Add only one clean in one of the cages for a few days and then add it in the rotation and after that remove the older/dirtier one?

I am really concerned to not have their scent track broken in any way.