The problem with this is that when I have an ID in one section and text to edit in the other, switching to WYSIWYG for the whole thing screws up the ID, and I have to start over. There's no ability to go back and forth.
The lesson here is don't use WYSIWYG at all. While its destruction may be greater for an Interactive Diagram, it can mess up other HTML too.
I've never messed up my code using the Source button.
Whether or not you have is not as important as whether you could. As a test, I briefly restored the Source button, opened your page to edit it, clicked on the Source button twice for the pieces section, and it destroyed all your <FIGURE> tags, placing each image and caption in its own <P> tags.
The lesson here is don't use WYSIWYG at all. While its destruction may be greater for an Interactive Diagram, it can mess up other HTML too.
Whether or not you have is not as important as whether you could. As a test, I briefly restored the Source button, opened your page to edit it, clicked on the Source button twice for the pieces section, and it destroyed all your
<FIGURE>
tags, placing each image and caption in its own<P>
tags.