We wanted to make sure that our parameterization of the Run 9 response reproduces the detector-level Run 9 dijet embedding, so below I compare our standalone Pythia 8 simulation (pi0-trigger) with the parameterized response applied to the detector-level embedding (charged hadron-trigger).  Good agreement is observed for all bins of eTtrg and R.  There are differences, but I would expect there to be at least some.  The embedding was generated using Pythia 6 rather than Pythia 8.  Not to mention, the embedding generator was tuned to match STAR data while out Pythia 8 simulation uses the out-of-the-box tuning (and pThatMin = 4 GeV/c).

eTtrg = 9 - 11 GeV:

eTtrg = 11 - 15 GeV:

eTtrg = 15 - 20 GeV: