I was wondering if the new shield gating system would be any better than the current one, since you'd be investing mod slots for shield/shield recharge mods without any extra useful stats like the augur set. Current/old shield gating would guarantee you 1.3 s of shield gating at full shields, no matter how much base shields. With the new one, it's not guaranteed for some builds to get to that duration with just one ability cast without nuking efficiency, considering the new scaling. You can opt to slot in the new Catalyzing Shields to guarantee that 1.3 s, but again, you'd be sacrificing a mod slot as opposed to just using Decaying Dragon Key with the current system.
Please do keep in mind that I have done just the barest minimum of math on this, so feel free to give out any corrections.