Overspill damage doesn't happen with shields, correct?
IE: If a shield had 1 HP, it'll still completely stop a Mavor shell (16,000 damage per shot).
I imagine this would be a significant factor in your idea.
Otherwise, shield micro would be very, very, strong.
Nonetheless, if the idea is balanced properly, then yeah, go for it!
I had always thought that turning off the shield would make it regen quicker -
wasn't until FAF that I discovered that I was wrong.
~ Stryker