Thanks for that, englishal!
Agree it's controversial, and since I've never done it I don't have a strong view either way, which is why I refered to a "general opinion" - by which I mean my un-scientific opinion on the most common and well-argued point of view that I've seen on the forums here. And that's also why I've refered to another thread where it's been (and is being) discussed in far more detail!
FFF
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