I am currently building a Z Sphere armature/ model ( and paying close attention to the classes). When I create an adaptive skin preview for my model, I am getting a large, spherical artifact in the midriff of the figure. This has nothing to do with matching volumes between armature and sketch, and it does not occur in the Unified Skin mode. It makes my dude look like he is pregnant, if you can imagine; just a perfect, spherical, beer belly hanging over my dude’s biz.