In case you missed it, there’s a show/hide box at the bottom of the wiki article with three side-by-side synchronized spinning dancers—the original one in the middle, and broken-symmetry ones on either side, with internal edges drawn in to break the ambiguity. I fixed my gaze on the counterclockwise dancer while gradually uncovering the original dancer with my hand, and thus got the original spinning counterclockwise in my peripheral vision. Then I gradually moved my eyes towards the original and had her spinning counterclockwise in the center of my view for a bit! …But then she flipped back when I blinked. Sounds vaguely similar to the kind of thing you were doing. I got bored pretty quick and stopped trying :)
In case you missed it, there’s a show/hide box at the bottom of the wiki article with three side-by-side synchronized spinning dancers—the original one in the middle, and broken-symmetry ones on either side, with internal edges drawn in to break the ambiguity. I fixed my gaze on the counterclockwise dancer while gradually uncovering the original dancer with my hand, and thus got the original spinning counterclockwise in my peripheral vision. Then I gradually moved my eyes towards the original and had her spinning counterclockwise in the center of my view for a bit! …But then she flipped back when I blinked. Sounds vaguely similar to the kind of thing you were doing. I got bored pretty quick and stopped trying :)