Strings and tension seems to be interesting topics on this board. I have experience that I would like to share and possibly get a reaction on. Over the years I have lived in many places and restrung my rackets in many different places and the reslut always differs. But when you order a specific tension you should get at least somewhere close to what you ecspect. Let me explain. If I order 9 kg tension (in Sweden we often measure in kg) the sales clerk might look at me and say something like: ”Is that all, we normaly don´t string less than 12 kg?”, or ”you can´t string a racket that hard. It will break”. This pussled me a lot so I tried to investigate the cause of this. And I came to the conclussion that there exist at least two different ways of measuring string tension. Now I string my rackets in a shop where they have a french machine of the brand Babolat, at 9,5 kg. Which is as hard as my friends who string at 14 kg at another place whith another machine. This all leads me to think that when you are discussing string tensions on this board you might you think have totaly different ideas about something that you actually agree about, and the other way around. Something like that. Anyway, does anyone else have the same expeience? Do you know how your string tension is measured? Is this a known fact? Do you know what I am talking about or am I maby a total idiot? (No, don´t answer that last one) I might have to add that I have an opinion already established in my mind, and my source is by me quite reliable. I still would like to hear other opinions and experiences.