Time Out for some drippy stuff: It seems to me that as ridiculous as this sounds, if you almost "listen" to your fiber or yarn in progress, it'll tell you exactly what to do. It's an instinct thing. It's not something that screams out at you, you have to listen for it. I've had just glimpses into this, and I'm sure it's commonplace with experienced spinners, but for other newbies, just be open to what the yarn is telling you.
Anyway, I did that unspinning in places, and not in others (that's fairly obvious EXCEPT that you have to mentally picture what's going to happen to the unspinning. Where will it gravitate? So I soaked it again, spun it in the salad spinner again, and this time I didn't whack it. I also didn't want to put a weight on the bottom of the skein loop because some of these slubs are damned long. I figured they could easily pull apart. So I looped just a dry wash cloth over the bottom of the loop. Not a lot of weight, true. But just enough to... well, it wouldn't hurt. It felt right to do. And this is how it came out. Still a little squiggly, but soooooo much better. And I didn't hear the yarn yelping anymore.