I received an e-mail requesting that I add a full-text RSS feed.
I had no idea how to do that, so it took some research. As a result, readers can now choose between receiving only the entry body or full text.
This is how I have done it:
A google search found this helpful blog entry.
This shows me that I can change the entry MTEntryExcerpt in the RSS template to MTEntryBody.
However, since I work with extended entries, that does not yet give me full text feed. So what I am doing now is copying the full text of all entries in the "Excerpt" field. And I offer two RSS feeds, one with the "Excerpt" field entry (full text) and one with the "EntryBody" field (only entry body).
And at this post there was a pointer to the ressources at RSS Validator. They have a template for Movable Type RSS 2.0 feeds, which I used here.