WWW,
I don't doubt its perfectly legal, but it can't be perfectly safe. I still don't understand how flying blind is a good idea!
Maybe in a very remote area, if I could be 100% certain that nobody else is around,(as opposed to knowing that hardly anyone could be in my way), then I'd feel safe. The fact it happens all the time means its only a matter of time
PS. What's 'GH' mean? (gaining height?, going home?)