Shields, no matter their size will always take 48 hours to fully charge, is that correct?
Or does the shield charge at a steady rate, no matter the shield size?
If the first assumption is correct, does that mean there could be an outpost with enough of a shield size to counteract the Tinkerer's local effect and still gain shield, and if so what number would that be (I'll probably calculate this later when I have more time, unless someone does it before me)?