Thanks for all the great detective work, Jonathan.    I think with your findings and mine we can boil this down to   "Why do we need to do the set() in addition to setting the transform values in the rule when it is created?"   Being that it could take quite a while for Jack or anyone to keep track of all the details in this conversation I have a little video that I think sums it up nicely:   http://greensock.com/forums-support-files/CSSRule-transform.mp4
    • Like
    4