My source which I will list below is found to be very accurate since he has actually strung it. I checked back a few months ago and it said Head Microgel Radical Pro. His strings were listed as i forgot but i remember the tension was 62/64 Now i checked... he is using a head microgel radical MP, not pro. And his strings have changed to luxilon and vs team gut at 55/57. http://www.colinthestringer.com/pros-strings/ thats the source. scroll down to murray, its alphabetical from last name. I guess we will find out in his next match for sure.