Perhaps a better question would be, at least for much higher priced offerings... why didn't you do that as part of your QC to make sure it changed exactly to your specifications rather than simply got too loose and now distorts more?So we should be able to contact the company to tell us where they got the 100 hour number from? I mean why is it not 87 hours? Or 13 hours? Why 100? If they have not run any tests to determine that, well, what they say is not worth anything.