I think you guys are looking at my pots from a different angle than me. As far as I know, the ruderalis's flowering is nature, not nurture - it flowers when it flowers. What I want to nurture is the root system by preventing plants from getting root-bound, and hopefully in the doing, work toward maximizing growing conditions in a small space.
Whether or not it's making a difference, and if so how much, I'm not sure yet. When I know, you'll know, you know?
I'm with you Flytie. Biggest plant I grew was in the biggest pot I had. Flowered in the same number of days as its smaller neighbor, same strain.