Thanks for breaking it down for me, Matt. I wish I had a spiral mixer at home like you so I could take your advice and put it into action. My KitchenAid is only good for incorporation on 1st speed. Double hydration doesn't appear to be an option with my mixer, unless someone has a trick I haven't figured out yet. I work part-time as a pizzaiolo around LA and I've had the good fortune of using just about every type of mixer there is - planetary, spiral, fork, double diving arm - and all of them work way better than my little, old KitchenAid. Oh well. One day I'll dive in and open my open pizza shop, but for now...
Out of curiosity, what brand of spiral mixer do you have?