(you say qfe we say field elevation)
You might get killed that way. QFE is the subscale setting that will ensure that your altimeter reads 0 at the appointed reference point. It is by no means the same as QNH. QFE does not work so well at high elevation airports or even medium elevation airfields such as HTKJ. It was beloved of the British air force and certain British airlines. It contributed a small extra cockpit workload especially in a go around situation, beloved of examiners when the candidate forgot to set QNH from QFE on the missed approach. That was an auto fail as far as the UK CAA were concerned.