Finally sat down to revamp the Shield Efficiency systematically. In the end, I decided to penalize / reward coverage areas and stick to current lore about frontal vs. omni coverage.
360 ANY = 1.75;
330 OMNI = 1.5;
300 OMNI = 1.4;
270 OMNI = 1.3;
240 OMNI = 1.2;
210 OMNI = 1.1;
180 OMNI = 1.0;
150 OMNI = 0.8;
120 OMNI = 0.5;
90 OMNI = 0.25;
60 OMNI = 0.1;
30 OMNI = 0.0; (pinpoint barrier field, no hard flux damage at all).
All upkeeps have been set to zero. That doesn't mean hard flux won't build, but it does mean that there's no hidden drain on flux when you power shields up; they use different power sources.
FRONT shields have double efficiency, per SF official lore, to keep in line with Frontal Shield Generator. Arc bonus for Frontal Shield Generator remains in place, since that's part of the OP tradeoff.
This makes ships like the Hound / Crow significantly stronger vs. frontal attacks again, which they needed (note, it also slightly buffed the Mk. II, heh) and makes the poor benighted Vigilance less of a cosmic joke, although it's still just a wee bit fragile for my liking and I'm still trying to decide what's a good fix (probably need to wait for 0.54b patch to allow some code-side rules changes I want to do).
The only bad side effect is that fighters with small-arc front shields are pretty uber vs. incoming PD, i.e. they eat Swarmers like they aren't there. Not sure if that counts as a bug or a feature yet; it certainly makes the Broadsword and Piranha more viable, which is probably a good thing.
Fighters in general need more work; I think I need to develop a lower-lag alternative to Swarmers for them to use in self-defense, maybe a heatseeker-type with good punch and decent maneuverability but short flight time. That, and those poor Vendettas just aren't worth their price atm and will need to get buffed or get a price drop to make them worth using.
Still working on the Glaug weapons; they're still feeling pretty generic other than new art, but they're all functional, so I'll release a new build tomorrow with them in, most likely.
Oh, and this guy too:
Meet the Star Tank; a small well-armored box that can carry one medium turret of choice and has some built-in light PD, but no shield. Slow for a Frigate but it can fire that Plasma Cannon all day long.