How should I set up my text in Eagle for the maximum chance of success?
I chose "always vector font" before I did anything, but my texts still claim to be "proportional". Should I worry about this, or will this be ignored because of the "always..." setting?

Taken from http://www.cadsoftusa.com/training/faq/


  There is the option Always vector font in the Options/User Interface
  menu which displays and prints all texts in vector font, independent
  of the originally defined font. If this option is active, the texts on
  the screen will look exactly the same as they will do on the printed
  circuit board.


I usually check "Persistent in this drawing" too, just in case I send my design to somebody else.