Eleven Moon Phases in Folio 86v?

[R. Sale]

Well, there you have it - 32 instances with the "macron" and 70 instances without. No other similar vord variations hit double digits. The only difference is the presence of the presumed "macron". What does the macron do? Does it function as a modification of pronunciation, or is it part of a totally separate glyph? How does the usage of these two vords play out across the VMs text? Are they clustered together? Are they interchangeable? How do they associate to the different VMs Hands?