No I'm not doubting your methods just curiosity as why no one has posted about success with this method before, I had mine replaced by Dawn and Ian Kennedy I am technically capable of doing it myself but jobs like this can be physically challenging to me now so let the well versed do the job for me, they fit the refurbed type with welded collets and schrader valves, I have to say they both worked extremely hard for the money for two hours but the ride quality now is superb. Good luck with whatever method you choose, please report back with results it makes interesting reading.