Don't you think that if they switched backhands, they might both be on 0 Slams? Here's my reasoning:
- Murray wouldn't be able to benefit from Wawrinka's backhand as much as Wawrinka can, because Murray is a more defensive-minded player, who likes to build a point and to outmaneuver opponents. Being able to open up the point more might be of use to him technically, but he wouldn't have the mindset to take advantage of it consistently. He's better off with his own backhand, which doesn't break a point open but does resist a great deal of pressure.
- Wawrinka wouldn't be able to win majors without being able to hit with easy power off both sides. He doesn't have the patience to build a point slowly and rely on counter-punching.