I always swore by app2usb in the past but after some failed experiments with a Databank 8tb internal and 8Tb extended storage setup, I'm left with just my 8tb external as extended storage. I will probably get around to swapping back to an app2usb setup at some point. Maybe when a new xploit drops.This is why I never use extended storage, always fucks up. App2usb has been a godsend and if you backup database your good. Plus extended storage has 8tb limit and I wouldnt be able to use the 18tb I was supplied to install. App2usb is the superior way to go. Just my 2 pennies after about 1 thousand installs.