The problem with moving green dragons into more safe zones is that it increases gold farming in that form. It'll not benefit slayers whatsoever as they'll barely get a sniff.
I don't have a viable alternative for you so I wont criticize the idea.
Anyway it's been nice discussing this whole thing and seeing peoples different points of view. I respect all of them, even if I do come across a bit stubborn (thats just me). But now I must leave you, bye =D.