A belated follow up: I tried several bags and researched many more, and the Reunion Blues Continental Voyager really is the only one that fits the Series I Standard Point well.
Ones that won’t fit it: anything by Access, Fusion, Gator, Harvest, MarkBass or Mono. I don’t think Cronkhite does either but I didn’t want a leather bag (heavy, expensive, and leather). GruvGear might have one that could work, the GigBlade 3, but wasn’t carried by any brick & mortar retailers which I wanted in case I needed to return it.
Attached are the photos showing how it fits. There is only one exterior pocket and it will actually fit the preamp box, but I don’t think I’d be comfortable transporting it that way often because if it were to fall on that side the box could damage the guitar.
One other bag that could work by trimming or removing some of the padding is the Road Runner RR5TEB Highway Premium. It seems almost as nice as the Reunion Blues (similar protection, more storage) at less than half the price ($100 vs $250). You can see how it works in the last two photos attached — it’s the one with the gray interior. I might have used this to save money but I didn’t want to mess with the padding since I also want to use it for my other bass. Removing the lower padding makes it fit nicely but the point is less protected (it’s a little more exposed on the Reunion Blues bag too but at least that has space for the horn and more support for the lower bout).
Btw another thread with some discussion here is
https://club.alembic.com/index.php?topic=27207