save 246 $x?

As we know, the 246 field is for title pages. Last year, we had a $x which was meant to convey "title page priority." Richard and I were never quite clear what this field meant, so we ended up labeling most novels as having a "main" title page priority. Probably because of the fact that we labeled almost every novel as "main," no matter where or what the title page looked like, Rachel and Jon decided to get rid of the subfield.

Thinking back on last summer and the books that we looked at, however, I think there might be some point in trying to preserve and subsequently revamp this subfield. As the summer went along and I got my bearings a little, I realized that not every title page had a "main" title page priority. For example, Richard and I frequently came across books many different kinds of title pages. Here is a list of some of the different kinds:

-Title page at the front of each multi-volume work that is meant to address the entirety of the novel, and not just what is written in that volume.
-Title page at the front of the book, but only addresses what is in that specific volume. Usually this is located immediately after a more "general" title page.
-Title page that is meant to address one specific "story" or "part" of the volume, which is located at the beginning of that part. This often happens when an alternate character starts to tell his/her part of the story, or if there is a different "author" of the proceeding material. The title pages are often interspersed within the novel.
-Half-titles at the beginning of the volume.
-Half-titles interspersed within the novel that are meant to address one specific "story" or "part" of the volume.

I think that it might be beneficial to differentiate between these different types of title pages. I don't really know what to call these different types of title pages, so I'll just label them "Type 1," Type 2," and Type 3."

-Title page at the front of each multi-volume work that is meant to address the entirety of the novel, and not just what is written in that volume. Full; Type 1
-Title page at the front of the book, but only addresses what is in that specific volume. Usually this is located immediately after a more "general" title page. Full; Type 2
-Title page that is meant to address one specific "story" or "part" of the volume, which is located at the beginning of that part. This often happens when an alternate character starts to tell his/her part of the story, or if there is a different "author" of the proceeding material. The title pages are often interspersed within the novel. Full; Type 3
-Half-titles at the front of each multi-volume work that are meant to address the entirety of the novel, and not just what is written in that volume. This usually occurs immediately before the full title page, which also addresses the entire multi-volume work. Half; Type 1
-Half title at the front of the book, but only addresses what is in that specific volume. I can't remember how often this occurs, but I'm fairly sure if happens fairly often. Half; Type 2
-Half-titles interspersed within the novel that are meant to address one specific "story" or "part" of the volume. These usually are printed instead of a full title page. Half; Type 3

Thoughts?