As it is the UIO vowel complex is a frequent problem with swiping. I'd like to see U and O moved away from each other, in theory.
I tend to favor the latter.
I have no brain-scan science for this, but it feels like queuing up things into my touch-typing hands frees a different brain-circuit to think ahead a bit more, while at the same time their unfinished task keeps me from being distracted too far off-course.
__________
> "Technicians? I somehow pictured you putting all this together with your own hands."
> Yenaro spread his hands—pale, long-fingered, and thin—and stared at them as if surprised to find them on the ends of his wrists. "Of course not. Hands are to be hired. Design is the test of the intellect."
> "I must disagree. In my experience, hands are integral with brains, almost another lobe for intelligence. What one does not know through one's hands, one does not truly know."
-- Ceteganda, by Lois McMaster Bujold
In the end I went back to a regular qwerty because my WPM on split keyboards/colemak-DH was considerably worse even after many months of practice.