I can’t use a split keyboard because of the way I’ve taught myself to touch-type. My fingers move around too much. On the other hand, I type around ~90 wpm (mostly using two fingers) so I win something or other.
Same. I learned to type without the whole “home rows” method and with some exceptions like shift (and A for some reason?) I type with two fingers per hand. Typing at 150wpm consistently is very fun.