I'm going to use them in may game. You can simulate it by using the components in the Starship guide (plus one edge I come up with "Hard Adaptation"). So I did the following:
-FSS-3 Shield (19 space)
-Prototype Edge "Defensive Systems": +1 protection and +1 threshold (+4 space or picks).
-Hard Adaptation: The Borg roll 3D6 instead of 2D6 to adapt to your weapon and Shield systems (5 space / Or 3 picks)
This seems a lot of space (or picks) but you can lower it by taking the Intricate Systems "Shields" from the "ESO" book, this flaw can represents the complecity of the Shield system.
The important thing to remember is that this shield Game technically works just like any other shield, even when it seems different on screen.
Ardet Nec Consumitur' / Burns but doesn't decay / Brandt maar vergaat niet.