I would teach them alot during CFI training in the US. As Gomer says, if you dont teach it, one day that might be where it quits on them.
Just remember to brief your student thoroughly, be prepared and above all only do it when you are comfortable. If all the precautions are thought about and acted upon it can be no less dangerous that the full down itself.
I would only suprise my students with a thorttle chop when i knew they had the maneuver drilled down to pure motor skills. I never got caught out and always had nice, smooth successful landings - All in an R22.
I only had 1000 hours when i was teaching these, but im so glad i did, because i now have piece of mind knowing that one day of it happens to myself or one of my students, they now stand a better chance of walking away.
Oh and in training i would previoulsly lower the collective slightly just before roll off to get the MAP to 21" -Any higher was out of my comfort zone.
Remember its not IF it happens, its WHEN it happens.
R22
