The model with these parameter dial slavings seems to work OK in Poser 8 but not in Poser 7. It seems that Poser 7 still has bugs in its morph slaving system.

The model is a (WIP) scuba diver with a rebreather converted from a stab-jacket :: the morph slaving is inflating his breathing bag (which is made of segments so it can wrap round him), and two tube connections must move as the bag inflates.