Thanks everybody a lot for you comments!!!!
Use check heights or Rate Of Descents indicated on your Jeppie or Aerad plates to monitor the glide/target profile and get your PNF to call out deviations as you go..
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Why worry about NDB approaches.
You obviously have never flown in Russia. In 98% of Russia airports when performing 2NDB approach during descend after the FAF you have the ONLY POINT (inner marker) with hight and distant to check your position. The QDM/QDR accuracy is up to 4deg. to the left and right. And now imagine your position at MDH when weather is munimum for 2NDB appr at night!
P.S.: in addition some airports hasnt PAPI light at all
con respecto!