I was checking a sudents plog today and noticed he had put an Minimum Safe Altitude of 2200 ft , and a planned altitude of 2000ft, i asked how he came to this figure, its MEF plus 1000 ft came the reply, seems he was told this by another instructor, not wishing to rock the boat at this point i let him go on his x/country, BUT , surely the Minimum Safe Altitude should be an altitude you come down to if forced by bad weather, so should be based on things like 500ft above the tallest mast on route, 500 + 300 on top of highest ground or 1000 ft above built up area etc. etc. not some random 1000ft above an MEA on some large box on the map,
how do you calculate the Minimum Safe Altitude on a students plog?