Interesting thread.
Regardless of for, or against - I think we would all agree that there is inherently more risk involved in such a procedure as compared to others (i.e. standard ILS, ARA etc etc). Even if training to stay proficient there is still more risk involved although we all like challenges
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My question might be more along the lines of what circumstances might warrant the risk. On the face of what I've read, you must wonder. I'm sure that we all exercise our skills every day, but equally I'm sure we still try to use superior judgement to avoid situations requiring the use of superior skills. I say keep them in the back pocket for that rainy day so we can enjoy a healthier industry.