Are you using DAZ's house mouse?  As for the CR2 don't ever be afraid of experimention. On my current project,  By a new grouping system,  I've created a way to get articulation in the hip i.e. yrotate(twist),  zrotate(bend),  and xrotate(side-side) without moving the whole figure.  The hip now twist bends and moves side to side without rotating the whole figure all around.  Now.poser would not weld these groups.  The mesh kept tearing,  so I opened up the CR2 in a text editor and rewrote the weld commands.  It's really easy once you get the hang of it.   BTW Here are the results.

Cheers,
Patorak