Symmetry Question

Hi everybody !

I have some questions still about the module of the symmetry and flatness.
Are the results the same between the first version of the module and the second version who had be rewritten ?
Other question, when you change the Ion Chamber of your accelerator , do you calibrate your EPID with the dosimetry mode or not ? if you check the symmetry with your Epid, may be it’s not an requirement to calibrate, normally the symmetry results with the epid must follow exactly the new adjustments done after the replacements ?