[Gandalf_The_Gray]

60% of left-handers, the people who have a higher proportion of perfect pitch, have “mixed hand preference”, in which they will switch off between hands for common tasks (switch hitters).

I have a different theory regarding ambidexterity. People who use tools often find themselves working in a space that doesn't allow them to use their dominant hand. Over time they learn to use their other hand with the same dexterity as their normally dominant hand.

If you watch welders, painters, paper hangers, iron workers, and similar you will see them display their talents using screwdrivers, socket wrenches, and power tools with ease while using either hand to get the job done.

Regards,
GtG

PS I have always held that I am ambidextrous, that is equally clumsy with either hand...

[Gandalf_The_Gray]

There is a correspondence between left handedness and a career involving mathematics and applied sciences. I checked my co-workers in an engineering department and noted nearly 75% were lefties.

G