My understanding of the 2d-VF roaming arrangement was broadly that 2d customers cannot roam onto VF cell sites in areas where 2d coverage.
However I got back from a mountain bike ride behind Kapiti and found a txt from 2d saying that I was outside the MBB coverage zone - implying that I had roamed onto VF. Being the curious mountain biking geek that I am, I had ridden to most of the cell sites in the area, and aside from the micro-cells, the macro-cells ("high sites") of VF & 2d are usually within 100m of each other (although due to terrain they might have different 'views')
Are entire VF cell sites (in 2d areas) off limits to 2d roamers, or are certain panels on the VF site made off limits while other panels are available to roam on?
Heres a screenshot from Bartenders cellsite map. Locations 1 & 2 have a 2d, VF & TCom macro cell in close proximity. The other two VF sites are micro-cells that are licensed but haven't been built. The red circle is roughly where I was when I receive the txt

Anyone able to enlighten me?
Cheers