Floating gallows

[Hermes777]

There are places where the gallows literally float above the baseline of the text (usually F or P on the top line of paragraphs.) 

   

This question draws attention to the 'benched gallows' which seem far more embedded in the text and less semi-attached than the free-standing gallows sometimes seem. The distinction between benched and free-standing becomes important:

   

To my eye, anyway, the benched forms seem well-integrated into the vords. Are there instances where they 'drift'? By definition they seem to be places where the elevated gallows glyphs are well rooted. 

Here's some text with the gallows removed, but it is harder to remove the benched gallows without removing whole vords. 

   

There are a few cases I can see where we find small areas of text gallows-free:

   

In any study of the gallows, benched or otherwise, there are the 'decorative' forms here and there, 'pilcrows' and the like. This representation of a 'benched' gallows - the glyph [t]? - is intriguing, for example. What might it tell us about the phenomenon of 'benching' and the integration of the gallows into the text?

   

Elsewhere we find the same configuration but with an additional glyph added between the two parts. It seems to be a case where glyphs are added to a space. The bridge of the gallows draws attention to that space. Evidence that the text is (sometimes) written in several passes, with the gallows coming first and then the other glyphs filling in the spaces?