I think Falla hasnt hit rock bottom. Good price sure for the defending champ in his own country but his form has been well off for half a year and I see nothing showing he'll turn it around (like recovery from a big injury or a different regime). I'm on Xman 1st set. It was very difficult to decide but he's been alright recently on other surfces so at least he can serve and win breaks and all it takes to win.