Shed a tear with me!
Look at that wrinkly edge!
What happened was that the knit panel wouldn't felt (I didn't check but the threads are descaled.) so I kept rubbing to no avail BUT the pink yarn next to the knit panel did felt. And this looked so wonderful when it came off the loom, even DH commented on its success.
It doesn't look bad when draped to wear but I certainly can't put it in the exhibition it was intended for.
Is there a code or something that manufacturers have to put on wool labels to say it has been descaled? I've been caught out too many times.