Why do people ridicule my "post-Helium" world comments? I am not saying Helium will disappear just become incredibly valuable and that will have to be dealt with. Owning a Helium recycler would be a great idea wouldn't it? Oh, I forgot, people like to ridicule the BiB, too. BTW, if anyone wants to form a joint venture to buy the envelope there are alternative non-flammable lifting gases! But let's not distract WSGI management at the moment. Great work, WW. Thank you! IndyJones