[no subject]

I would personally recommend to at least always assign the /64, even if you would decide to configure the /127. RFC 3627 has been around long enough that you will keep running into equipment or software that won't like the /127. In which case you can always revert back to /64.
This will also allow you to use easy to remember addresses like ::1 and ::2, saving you the headache of a lot of binary counting.

Grtx,

Marco