"I have seen" and "i have heard" are NOT actual facts. The tension pro stringers give are. They work on pros actual sticks and strings, and they keep record of every stringjob done (at least, it's what I and other fellows pro stringers do).
Ah..and i'd like to know the source for the "future" tension of Nadal...maybe the same source knows strings and frame, too..however his ACTUAL tension is 55, and that's what was correctly stated.
And excuse me if i'm looking rude...i can understand you're a tennis FAN, but since you're giving away incorrect infos, at least go to a good source (USRSA/RSI is one)
Regards,
Mario