Live Persistance vs Default installation to USB

[conan]

What is the difference between Default installation to a USB stick and Live Persistance USB installation?

[pavroo]

The default just copy iso to usb stick to let you launch the live system.
Persistence gives you opportunity to save your settings in live session on your usb stick.

[conan]

I mean if I fully install the Distro to an USB instead of internal SSD. Why should I use built in live USB with persistance tool? What is the difference?

[pavroo]

You dont need persistence if you install Sparky on a hard drive.

It is useful if you use Sparky in live mode only, to save changes made in live session.