Now that the weekend (or "week," or whatever length of time best described this "sale") is over, I just want to say, "Thanks, FDev." I'm an almost compulsive mat collector and love engineering stuff just to see where there's opportunity for new optimizations or novelty in this game. In this last week, as a result of this sale, I engaged in and discovered:
1) That after engineering about 10-12 plasma accelerators up to G5 with various mods and experimental effects, I (and my HOTAS) setup still can't hit jack with them, unless by "jack" we're describing a really big, really slow-moving ship ...or that that first give-away, point-blank shot against a stationary ship that the NPCs give you before combat begins in a HazRES. But against anything flying at all evasively? Not a chance. Darm it. (I even had temporarily high hopes for the "fun" factor of unloading a 'Conda outfitted with ALL PAs on unsuspecting pirates in hopes that would be a fast shield killer. Alas, after that first shot, my DPS went down to the point where the PAs really weren't an improvement on my previous go-to loadouts (and made small ships much harder to swat aside).
2) I learned, to my immense frustration that the weapons you've made "meta" for PvP competitiveness remain really damn hard (if not borderline impossible for most mortals) to be effective with for HOTAS users, no matter how they're engineered, thanks to your choice of flight modeling engine! (Before Elite Dangerous I'd racked up about 15 years of using and achieving deadliness with fixed weapons in PvP aircraft combat flight sims with realistic aircraft modeling, and after over 1000 hours in Elite Dangerous I still can't track or hit small ships flown with any skill using fixed weapons! And KBAM is just not viable in VR, kids) Grrrrrr.
3) Even highly-engineered cannons are, alas, a poor efficiency choice next to your modeling of MCs, which is a little sad (but I may do it anyway, just for the novelty of boom boom boom vs takka-takka-takka).
4) Now that the sale is over, I hate the G4 and G5 costs of engineering, again. Especially the use of high-grade raw mats, which are still annoying to get.
But, despite the fact that all my engineering during the week didn't enable me to discover any new way to outfit a ship without accepting efficiency/lethalness degradation, I had fun exploring the options. And I suspect the NPC pirates appreciated the break. So, thanks for running this event.
I still wish you'd made those guardian mods more available, though. You really need to consider the wisdom of adding new, expensively-developed content only to make it so annoying to unlock that it goes unused by a majority of the players.