Strangely enough, although I am left-handed, I have a strange 'condition' where if my arm is extended such as when using a whiteboard, painting or drawing on an easel and yes, a kneeboard, I'm right-handed. If I'm writing on paper, then it has to be the left hand. Bizarrely, both writing styles are completely different - left hand spidery and right hand, rounded. Weird, huh?