By Jessica Frank-Keyes Practice makes perfect, the saying goes. Put in 1,000 hours at anything – even facing down the braying green benches opposite you – and improvement is all but guaranteed. It’s a truism thrown into sharp relief at times, including when Rishi Sunak and Keir Starmer take a break from Prime Minister’s Questions. Handing over to their deputies this lunchtime – with just a week to go ahead of the landmark local elections – was a lesson in just how that week on week on week practice has served both politicians well. In contrast, deputy Labour leader Angela Rayner’s efforts to b…