Update: 4/10 (28 days after bagging)
I transfered the baggies into smaller 1-gallon pots to reduce crowding as seen below - I can fit 5 bags per 1gal pot; 6 is too tight of a fit for my taste. I can also fit 6 of the 1gal pots in my average-sized bins.
I still have not had to water. I'm happy with the moisture level in most of the baggies right now, so I've gone back to cracking the bins for a couple hours during the evening.
I haven't seen a lot of leaf drop the last week, although I have pulled a couple of leaves not looking very healthy.
The Atreano I repotted a couple days ago (see above) is doing fine, even outside the bin the last two days.
One of my absolute best growers right now is a promising unknown from a figfriend in PA. Both cuttings have slightly fewer roots than the Atreano pictures above - but both cuttings are growing roots 4-6" out of the baggies. I'm looking forward to see what it does this year.
I still have not lost a cutting that I can tell, although I'm skeptical that the St Jean cuttings I rec'd from UCD will atually do anything but rot (they arrived extremely moldy).
That said, I havne't seen any level of mold that is worrisome, I think this is due to cracking the bins for so many hours during recent days. I have been diligent to cut off any tips that shrivel before they mold also, so they don't have any dead plant material as food.
I'm seeing roots on about 30% of my cuttings. I'm seeing "good enough" roots to survive repotting on about 5-6 cuttings
Tally: Started with 66 cuttings. 1 repotted, 65 still rooting.
Here are the pictures:

