Hi all! i have a proposal for an experiment that some of the BF'ers can conduct regarding different strings and tension loss over time, say 1 month. what we can do is measure out a preset amount of string of each string type, and then put a weight on it. (im not sure how this works, but i'm sure Neil Nicholls knows, because he has done something like this before) then, measure the stretched length. then we can calculate how many mm each pound would stretch the string by initially. we must leave the string at this length, so even if it loses tension, it wont get stretched even longer by 25lb (because when we put our string on the racket, the total length of the string doesn't change, only the tension does). every 24 hours we let the string loose again (so it will return to original length) and measure, the number should increase by a bit because the string is losing elasticy. stretch the string back to the stretched length, and measure the unstretched length again in 24 hours. since the stretched length isn't changing, we can calculate the amount of tension left in the string. over a 30 day period, we can find out how many pounds of tension the string loses. for example, if our set string length was 1000mm and the original weight was 25lb, then we cut 1000mm of each type of string in our experiment, and put 25lb of weight on it. say that string A gets stretched to 1200mm. then we know that each pound of tension will strech string A by 8mm. then we strech the string to 1200mm again (perferably tied, and not weighed down), and wait 24 hours. by this time the string may have loosened, but the stretched weight isn't going to change, because we aren't leaving 25lb on it. then, we measure the unstretched length, (for our example we'll say it becomes 1010mm), so that means our tension has become (1200-1010)/8 = 23.75lb. stretch the string back to 1200mm and wait another 24 hours, rinse, repeat hopefully at the end of 30 days we will be able to draw graphs on tension loss by different strings, and get an idea of which string(s) lose tension the fastest or slowest. hope this makes sense, and correct me if parts of this may not work.. i dont have any of the required equipment to conduct such an experiment, but im sure there are a lot of BF'ers with access to these things thanks in advance for any help with this experiment!