With David Law swanning off on holiday, we've recorded our third listener-questions show - the 400th in our six year history - guest edited by Lea Lahnstein.David and Catherine Whitaker have answered the best of them, such as what makes a good coaching partnership and the fascination of what goes on behind closed doors, how many is the perfect number of seeds at Grand Slams, and whether or not the Wimbledon queue is a fair and fun thing. Plus David Catherine compare their own playing styles to pro players, with amusing results. See acast.com/privacy for privacy and opt-out information.