Ai! Ai! A Balrog wing discussion is come!
Welcome to the Downs, Yavanna.
This is an issue which should be approached with great trepidation, since it has been the subject of much past debate on this site. There is a great article on the subject
here, and much more on various threads (use the Search facility if you are interested).
Once again, welcome and have fun posting. [img]smilies/smile.gif[/img]