I agree with jbo. i was taught to throw left handed (clockwise) by a right handed potter who thought it would be easier for me. All her demos were on a wheel spinning counterclockwise - i never had a problem learning from her or any other righties who have shared their techniques with me over the years. As for all the other adaptations we lefties have to contend with - beside 3-ring binders - don't get me started! Ever think about a pair of scissors?