1. {\switchtobodyfont[18pt] text}

2. {\tfx font size ??}

3. {\xii some font}

What are the advantages of each? I would think that option (1) would be the simplest and clearest to use.

Consider 1 vs. 2 if your editor or journal said, ``No, we don't want 12pt text, we want 10pt text.'' If you've used option 1, you will have to go through and find every instance of where you've changed the size, whereas option 2 will scale with you. Steve