Is it worthwhile para-droping or glide-dropping excess fuel within airport open grounds reserved for that purpose. I understand that floating into the main the

Is it worthwhile para-droping or glide-dropping excess fuel within airport open grounds reserved for that purpose. I understand that floating into the main theatre will be a serious problem. Current weather should allow making those calls. There's also the aspect of saving money by purchasing fuel where it's cheap and having internal fuel reserves low enough at such airports so that it can be bought in significant quantities. As you can see from my comments, I am a complete newbie, just a curious one.