OK, I know you guys hate answering questions like these which are repeated, but I cannot find any post which is of the same nature with my question. My question is the tension. When I restring my racquets, the guy just asks whether I want 60, 70 or something like that. Could someone explain what it translates into? I found another guy to do my stringing who uses pounds but this current man I go to really often and I get good prices. So please anyone?