unfortunately that's the cut throat world of business and profit and it ain't going to change.
they report back any minuscule changes in temperature, expansion, grip, water resistance and whatever else they want to use as a reason to increase prices or launch a 'new improved product'. they try to brain wash us through marketing, 'freebies for trials' and hearsay through regurgitation of gullible forum members BUT if you know different and you can prove it, then I say use it and keep it to yourself and your apprentice because if you say it on here, or there for that matter, not every body will buy into your experience because.....we are just ordinary tradesman, with no clout, no influence and no importance...........cruel but true.