Since the other choice was some One Burst Grand eruptions and maybe a short Beehive interval, instead decided that watching nothing happen at Norris was a valid alternative.
Arrived at the platform around 06:45 to a lot of strong South Vent minors and weak to no activity from the North Vent. That was pretty much the case the whole day. There were a few good surges where North did join in, and South put out a heavy stream of water, but they were isolated and infrequent. Around 18:00, the situation did change a little bit, in that North was now initiating some of the activity, and not stopping when South began. There were even a couple of surges where the North Vent showed signs of going vertical. But no eruption by the time we left at 19:45.
What was noteworthy was the lineup to get out of the park. We came to a halt well before Terrace Spring, and over the next 20 minutes slowly crept toward the junction. No one was making the turn, because it was brake lights all the way toward the campground entrance. I sure hope there was an animal jam just down the road, as the idea of being that sort of mess for the next 14 miles makes me glad I never have to go to West Yellowstone.
What was also interesting was that the lineup was devoid of busses and campers and RVs. On the drive from the junction to Old Faithful I counted only 5 of them. It was almost all small passenger vehicles. I guess it was everyone headed back to their hotel lodgings.