If I already have an experience shrine active, do I get any benefit from activating the 2nd one or is it best to wait until the first expires?
ie. does the duration stack? or does it just restart the timer when I activate 2nd one
Havent done any testing

It would be like activating another shrine, overwriting the current one.
With the case of using the exact same shrine, just 'refreshing' the duration.

Thanks, thats what I suspected but couldnt be sure