Alright, things are looking a bad for us with our rolls, it's time to deploy the [6]:
Seed Crystal Manufacture Process
Crystal size has always been limited, our flash-grown crystals of too low quality to withstand its own weight, and traditionally grown crystals are obviously completely out of the question. While some members of the R&D team speculate that the full Itshana Refinement Process could 'brute force' the issue to an extent, the resources such a test would entail would significantly detract from military production, and of only mere speculation, so as such is therefore barred without an Official Order in triplicate.
However, one of the engineers suggested an alternative, one that wouldn't mandate great spending of our mineral resources to only stop our flawed design from collapsing from their own weight: Seed crystals; notably, seed crystals roughly the size of a finger to a hand, slowly and carefully grown over the course of an entire year in an Itshana Select Vat to ensure maximal quality of the seed and minimal impurities that would compromise the crystal later in its development.
Once made, these Seed Crystals can be used in a normal vat to produce a crystal with a significantly higher structural integrity, strong enough to hold the weight of a much larger crystal, and a more efficient internal structure for performing whatever task that specific crystal was built for. However, sufficiently large crystals will have their flash-growth process slown down, so as to not make the effort put into making the Seed all for naught. Of course, these seed crystals can be used in an Itshana Select vat, to minimize impurities taken in by the flash-growth process and to maintain the Seed's remarkable quality throughout the entire process.
Thankfully Wrethian Pride has prevailed, and Vattery Experts and the best Structural Engineers across Wreth have come together to best decide the specifics of the structure and shape of the Seed, and many of our industries have volunteered their Vattery time for experimentation to allow the team able to pursue as many different avenues as possible to ensure the best possible result. Unfortunately, the Department of Maintenance has declared that while this is ok for now, said experts will have to go back to their normal jobs, and the vatteries must be returned to the industry, or else things around the Spire will start breaking down.
Alright, medium crystal + stronger, non-select crystals here. Point out any flaws in this write-up.