Sanity Checks for EMM and PGM

Hi,

assuming the following:

Step I: I calculate the terminal value for my DCF via EMM using the (median) current LTM EBTIDA multiple from my trading comps. Subsequently I calculate the implied perpetuity growth rate which turns out to be 4%.

Step II: Now I calculate the terminal value via PGM and subsequently the implied exit multiple. If this implied exit muliple is in range with my chosen LTM EBTIDA multiple, I could see this as a confirmation that the chosen multiple is sensible.

Now - do I take my 4% implied perpetuity growth rate, plug it in Step II, and simply go on with the described calculation? Or do I choose a growth rate on my own (e.g. long term sector outlook)?