Can I butt in too?

Cross talk can and will effect JCM in P6. The Cross Talk Fixer will block it for almost all human figures.

I haven't tried the "Universal Null" in P6, but in P4 and 5 it didn't work for JCM figures. That is, channels where the name of a body part (rForeArm, lFoot, etc), not the "Body" is specified as the controlling channel and the Figure name is "Figure 1"

For the curious a Universal Null is a completely empty figure. It has no geometry or body parts. The Cross Talk Fixer Has no geometry, but contains all the body parts with no channels. For figure designers, if you're interested, there is a way to build a shield figure be it a null or a fixer into a figure that uses JCM. This will insure the user will not have to struggle with cross talk, even in Poser 4. See my EMC tutorial for details on embedding a shield figure with EMC.

Nerd3D