Dunster, interesting articles. Singer was a leftie, huh? Makes sense, come to think of it. All the fine motor skills (no pun intended) are done with the left hand at a machine. Looking at that museum SM Singer gives me the willies. Looks so....weird! Bneighbor, that would be quite the conversation with Mr. Insurance Agent. Franc, I am righthanded, but just got a 15 91 for the first time ever. It threads from R to L, and that took ME a while! I often thread with my L hand, eat with it, paint with it sometimes when the R is tired.
When I mentioned to my dr that my memory is giving me trouble, she suggested I use my non-dominant hand more.
I would guess ambi people have better memories. That would be an interesting study.