After the sub-six hour Grand interval, was hoping this indicated the shift was on. It wasn't. Rift and West Triplet were erupting as I came out, and Rift ended about an hour later. Ended up with an interval around 9 hours, with the last few Turban intervals with alternating eruption durations, short followed by long followed by short.
The next Grand eruption was similar, except for Rift itself not being active. Grand took an hour and a half after West Triplet ended to finally erupt after a series of alternating Turban intervals. West Triplet then started erupting after the end of the one burst eruption. The only notable thing to happen was getting a single Churn eruption from the Sawmill Group on a cycle where Penta looked good until Spasmodic dropped.
That evening there was another relatively short interval for Grand, but with a two burst eruption. The interval was short enough that it looked like I could easily get in a couple of Grand eruption before I had to leave the next day.