Years ago I tried hand quilting with Warm 'n' Natural. It was very difficult for me, perhaps because I had been "spoiled" by hand quilting through easier battings. It's good to hear they have since improved it; I'm sure hand quilting with it now is much easier than in the old days when I tried it.
However, one thing they haven't changed is the scrim. That's what makes WnN so stable. It is always going to be more difficult to quilt through a scrim than with a batting that does not have a scrim. I haven't hand quilted in ages but I'm sure that when I take it up again I will make sure the batting doesn't have a scrim. I want my quilting to be as easy as possible on my hands and wrists.