Yes, I do. If the mix is good, that is not necessary, but stem-mastering offers more possibilities for problematic mixes. The effort and the associated costs, however, are higher. Should it arise, we will discuss whether stem mastering would be a good idea and if so, to what extent. One example of a possible stem separation is: main vocals, backing vocals, bass, drums, guitars, keyboards. The important thing is always that all stems have the same starting point and that, when superimposed, they reproduce your mix perfectly and without the need for any further volume adjustments.