I want to make a morph that will work correct the Twist shoulder dial

while the shoulder is bend

 

A multiplied JCM can do this. I would export the posed figure and sculpt the corrections in Zbrush, then load the JCM in Poser. I use Colorcurvature's scripts for this. The next step is to take  the shoulder bend and multiply it by the shoulder twist and divide 1 with the result to find the deltaAddDelta value. For example, if you had a twist of 20 and a bend of 40, that would give you 800/1=0.00125.

The cr2 would look something like this:-

targetGeom lShldrDn40twst20

{

            name lShldrDn40twst20

            initValue 0

            hidden 0

            enabled 1

            forceLimits 1

            min 0

            max 1

            trackingScale 0.02

            keys

            {

                        static  0

                        k  0  0

            }

            interpStyleLocked 0

            valueOpDeltaAdd

            Figure 1

            lShldr

            yrot

            deltaAddDelta 0.00125

            valueOpTimes

            Figure 1

            lShldr

            zrot

 

This method can work for you. It has saved me several times.

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