David,
I see something.

If your YAK will continue to harrier, even though its rocking like crazy, its controllable. Really. I had the CAP you mentioned earlier, the H9? At that time I couldn't truly do any 3D, but I could harrier that thing all over the sky. Just pull back and watch. No wing rock to speak of. Something to notice: a CAP 232 has a high forward stab. I scratch build lots of 3D planes I design myself. I commonly use a high forward stab because they're so good in harrier. I just finished a new one the other day with the stab much lower in the fuse. This plane is a bit looser in harrier, meaning it will rock if you let it. No problem, just stay on the ailerons and its fine. So while it still harriers great ( I was doing harriers inches off the ground on the maiden flight) its just different. I'm with Mike on this one.