A peculiar case is when the conformational order changes with the level of theory, especially when the global LoFi minimum, which is the reference for the HR treatment is not the global minimum in the MuFi potential energy function (PEF). For monomers and clusters of longer alcohols, Umer et al. found such effects and adjusted the PES by shifting a selected number of points around the corresponding minimum by the energy difference between LoFi and HiFi result. To investigate how the MuFi treatment can make use of these data, we choose these ethanol monomer and dimer cases where the additional complication of changing conformational order appears.