FWIW, my score is LB 44%, RB 56%
For instance, in the test of the rotating dancer, if one looks initially, she is either rotating anti-clockwise or clockwise, but after some time it becomes vice versa.
Apparently, both hemispheres of the brain do interact and communicate and not one hemisphere is dominant as both can express themselves in one’s consciousness at different times.
Hence, the flip-flop (interpretation of rotation) of the rotating dancer at different times.
Not surprising, as from the link in the OP,
For example, recent research has shown that abilities in subjects such as math are actually strongest when both halves of the brain work together. Today, neuroscientists know that the two sides of the brain work together to perform a wide variety of tasks and that the two hemispheres communicate through the corpus collosum.