DVG, it was looking at your ping pics that I first noticed that the leaf pullings all seemed to be striking from the base, so it's nice having that confirmed! I look forward to experimenting with the propagation of many more CP's in the future. I hope half of them are as cooperative as my first attempts with drosera.
... The flowers are sterile so they will probably be nipped in the bud, to keep the energy with the plant's rosette...
This is probably a silly question (my knowledge of plant breeding is limited to the odd piece of information I picked up during a few years of being a field worker for a corn breeding/research company), but when you mentioned the flowers were sterile, is that universally sterile? Or is it just self and clone incompatible? I just stumbled across the pages on the ICPS website about Drosera Hybrids, and flower self-incompatibility, and noticed there wasn't a whole lot mentioned about the "three sisters."
It might just be a matter of trying to pollinate the flowers and seeing what results occur.
In the ICPS link to sundew flower self-incompatibility, near the end of the article, the three sisters are all listed as self-compatible, though they are all also considered to be dichogamous(flowers having pistils and stamens that mature at different times), which means the flowers can be self-pollinated, if pollen from a previous flower is saved to pollinate a flower opening in the future.
So it might be worth a try, if you're interested in taking on a new project.
I did see the note on the sisters being dicogamous on the page, but nothing beyond that. Interesting that the first poster in the link you provided was asking about a hybrid of all three sisters, as the post I came across that made me think I should actually look further into this topic was on the same forum about the same three sister hybrid, apparently from a few years earlier: link here.
I guess I'll have to do some looking into pollen preservation and pollination techniques, and have some fun experimenting if I get the chance.
Although maybe I'm getting ahead of myself. Perhaps I should make sure I can keep them alive and happy long enough to give them a chance to flower before I get too keen on figuring out what to do when they get to that point haha.
They're growing faster than I had expected, and it was really interesting watching the dark line, which I was initially worried was some sort of dying tissue on the original leaf that might cause issues to the babies, turn out to be the beginning of a root that travelled across the old leaf and then start extending down into the moss. (You can see this just to the left of the base of the plant in the foreground)