There's been a few posts around asking about guardian shield bubble machenics, however no one accually answered the question:

What's the most efficient way to use guardian? Turn on shield 1 by 1 or let them just autocaste and stack them together?
and Why?


Edit:

Let's say i've got G1,G2,G3 all have shield on, which one is the one absorbing damage?
If there's only 1 absorbing atm (assuming they don't stack), does that mean the other 2 are basically wasting their duration and antimatter? (assuming they covered the same area)

Thanks alot

Greetings