Classic reinforcement of this point for me was when recovering to Lossie from the south, at low level and in "average" weather. In accordance with the BINA I made contact at 20 NM and was told by ATC "set Lossiemouth QFE of xxx". Whilst still sneebling through the hills, had I conducted a low level weather abort on QFE my altimeter would have been useless and given me no reference to safety altitude. A quick scribble of the airfield elevation on a kneepad (or read if off the LFC) and a cross check with the navigational consultant/co-pilot is all you need. (Single seat guys should inherently have the capacity
).