You do NOT base your TOC styles on Heading 1. This is going to make a mess and might even crash Word. If you mean your heading styles, it is OK. However, what Paul was talking about was the TOC styles.


Changing the formatting of your heading styles will not change the TOC (except for numbering).

See this article for directions on setting up custom TOCs.
TOC Tips and Tricks

For basics of how TOCs work:

• How to create a table of contents in Microsoft Word by Shauna Kelly
• Generating a Table of Contents - Complex Documents