After about a month I moved them into full sun against a nice warm rock. Guess what happened. They stopped growing again for about 2 weeks. So if my experience with this species of Adenium has taught me anything, it's that they like to be put in one spot and stay there! About 3/4 of the leaf growth is actually from within the last month. They really do grow quickly when not being moved around.
There are a bunch of little branches forming all along the trunks and most of the caudices are swelling up quite nicely. I ended up with a good mix overall: Some dwarf, some not, some with fuzzy leaves, some with smooth, some with a pronounced caudex, others with next to none, some with lightly coloured bark, and others dark. All are unique in one way or another.
I have yet to get any flowers. One bud formed last summer but after an aphid attack fell off. I have had absolutely no problem with insects so far this summer. Hopefully I'll finally see my first flower! The plants are now about 2 years old, grown from seeds provided by a supplier in Thailand.