Re: Quick way to use same size font for all faces?

> No, it isn't.  The value of the variable is consulted when
> font-latex.el is being loaded.  That means if you put your code for
> changing the variable into `LaTeX-mode-hook', font-latex.el gets
> loaded and uses the default value of `font-latex-title-fontify'.  Some
> time after that `LaTeX-mode-hook' will be run and the variable will
> get the value you specified.  Of course, this is too late at that
> time.

Oh right - I had sort of come to that conclusion having read David's 
post as well. Thanks for your help.
Jonathan.