Sounds like you're on to something Meat...congrats!
Yea, at first blush...I'd have no problem with what you describe. Your tour is probably more surfer friendly than a lot of paysite tours...and with fewer traffic leaks.
A couple questions...
You say that you do pop a console. Is this a console that defeats blockers?
One issue that cause you problems is popping the paysite signup page in a new window. Most link site owners don't like new windows opening on free sites. But, since you're only opening the window from your hosted tour...I can live with it
