It's been just over a month since I harvested the leaves in this tray. Some of them aren't doing anything, though others of the same type, same plant, are already growing & potted. The tiny Sedum rubrotinctum leaves in the middle look like they're starting to go, very happy about that.
These Kalanchoe marnieriana & Echeveria look ready for a pot.
Kalanchoe fedtschenkoi. Done these a few times, these babies seem reluctant to grow roots or develop chlorophyll, generally. A much lower success rate with these babies than other kinds of Kalanchoe/Bryophyllum that make leaf-edge babies.