Interesting. We blast degreased screens with compressed air knives and dry horizontal in the cabinet. It's fast due to the air knife atomizing most of the water out, but I don't like how much time degreasing takes and have been thinking about ways to expedite this and also use less air on shifts.
No streaking or issues with dust using your method?
We never did the air/shop vac thing so you might be ahead of us. I was always afraid of introducing more problems after trying spending all that
time removing them. Do you have air filters at each station? I'm thinking I might give them a try at least post develop. Couldn't hurt much
there. McMaster Carr is one of the only apps I have on my phone haha.
Streaking and contaminants have gone significantly down, we used to occasionally have issues with chems/water being trapped between
frame and mesh then making it's way out while drying. Not to mention the summer the water co started adding an algaecide.
The way I see it is if it's vertical you're encouraging the residual water to get on down the road with gravity and airflow.
And if mycology has taught me anything it's that dust and particles fall down not up or sideways, less surface area to collect.