I was intrigued by the non righthandedness thing. I am right handed but from childhood have wanted to do certain things as though I was left-handed, specifically sport requiring a bat or club to be grasped with both hands. I never heard of anyone else doing this and had not realised it was a 'thing'. In the end I did not persevere with tennis and when playing golf just adapted to standard right hand clubs and am now more comfortable with this. Thanks for the info.