I had the same experience with a critical kush recently. Just as I was going to cut it, the buds started to shoot out a dozen or so shoots each. I let them run for a while but it got to be too heavy.
I've taken clones from flowering plants that were a lot further along than that. Sometimes, however you will get strange growth like weird or single leaves for a while. Rooting compound...I use it but generally I find that it retards root growth. Most will root but will take a long time.
Humble Pie sang about Durban Poison 40 years ago. I still haven't tried it. My local store has some Crop King beans that I've been looking at. Might pull the pin.