Sorry if I offended you PaulM... it was a light hearted remark designed to create laugh or two... didn't realise you were so serious minded. First time I've ever been ignored for making a light hearted remark. As a guitar player of some 40 years experience I could give you some good advice on stretching exercises but it has already been well covered by the others so no need for more. I will go back to working on being more serious in future.