I wonder if a knowledgeable Chrome user can help me here.

I like the idea of having a backup of my settings and apps and i have GMail account I can use for this.

Is it possible to log in, save my settings, then log out again so my web history etc is not saved to google, and then later if I need to re-install to be able to log into my account, sync settings to the latest backup I did, then log out again ?

In other words I want to have a backup of Chrome settings, but not be logged in all the time.