SiskinEDGE

What I'm wondering If a zinc or brass allomancer was in the cognitive realm could they soulcasting something?

Another way it could work is with pulse phased fabrials (several in a row strongly activating in sequence in short pulses) to draw in air in a single direction without it collecting around the fabrial. If there isn't an efficient fabrial for air then fabrial heated steam with the exsisting attractor one for water can work for a fabrial jet. I'll add a doodle soon of a few ways this could work. However the timing should be possible using the same knowledge as with clocks which has been demonstrated in universe.

It'd be a couple years before the next storm light book but I wouldn't say a highstorm ship to be too far off. Skyeels fly with luckspren without the surges and chasmfiends are lightened by them. There is already speculation about luckspren in earlier books before seeing I figure if a animal can use a spren, a fabrial can too as there has to be some common way to have persistent intent. If the right scholars and right spren compared cryptic clues on what to watch out for an compare the drawings. For all we know skyeels grow an internal glyph in the cognitive realm that attracts luckspren. The thing I think is holding them back in the design isn't reinforcement, it's weight. Make it lighter then use an enhancement fabrial, with a and an elsecaller with fabrial knowledge you could tune the enhancement fabrial on the shadesmar side quite finely even if you can't use a spanreed or soulcasting to communicate from the other side. They could potentially use attractive and repulsive fabrials to move air. Then they could have short range aircraft for loading and unloading goods and passengers from what could end up a merchant city upon the highstorm. That might be more of a peaceful application of it as a lightweight floating city would be vulnerabile to a lashed thunderclast or a highstorn/everstorm collision.