Pro's (Past and Present) That Have Swung a Wilson 6.1 [Includes major winners]

The definitive list (thanks for the help @Arti ):

Juan Martin Del Potro: 18x20 - 2009 US Open Singles
Max Mirnyi: 16x18 - 05/06/11/12 French Open Doubles - 00/02 US Open Doubles
Gaston Gaudio 18x20 - 2005 French Open Singles
Robert Lindstedt: 16x18 - 2014 US Open Doubles
Vasek Pospisil: 18x20 - 2014 Wimbledon Doubles
Horia Tecau: 18x20 - 2015 Wimbledon Doubles
Jarkko Nieminen: 16x18
Mardy Fish: 18x20
Dominic Thiem 18x20
Philip Kohlschriber: 16x18
Igor Sijsling: 18x20...

Pro's (Past and Present) That Have Swung a Wilson 6.1 [Includes major winners]