I don't know the tech speak for this, but until someone better versed comes along, I'll describe in my own terms. CT is when the morphs of one figure take over another figure in the same Poser scene. Two V3s together, but with different morph settings, for example. I always render outside of Poser, so this isn't much of a problem for me. A better example is conforming clothes. The reason this isn't discussed much is that it can result in super conforming clothes, which is often what folks want. But some of us prefer the clothes to be morphed differently than the base figure. If the clothing in question doesn't exactly match the human figure in meshing and morphs, the results can be a mess. Okay, almost always a mess. Since I rarely want clothes to look skin tight (yet still conform), this drives me nuts.