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So:
If I take the neutral pose and twist the neck, torso, hip and so… the faces go crazy. So much fun! …Or not.
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So:
If I take the neutral pose and twist the neck, torso, hip and so… the faces go crazy. So much fun! …Or not.
I just did a test on one of my own models and it worked fine without distortion of the face. Do you perhaps have part of your tool masked? Try going Mask>Clear Mask. Also try storing a morph target of the t-pose before you start enabling your 3D Layers. ZBrush likes having morphs stored for some odd reason.
Hello! Thank you so much for your tests and your time, dustinbrown!

My explanations may be confusing. Let’s try again, step by step. 
I haven’t tried this its just off the top of my head, but it’s possible you may be able to control which part of the mesh is effected by the layer using either masking or by hiding part of the mesh. That would be the next thing I’d try. Using a technique like that you should be able to isolate the good and bad parts of each blend shape combination.
dustinbrown (thanks forever) I tried several things like isolating distortion in one layer and then activating some “layer heads” with that distorition in negative value, also standing up before testing, enough time to hop onto left food and then walk backwards two steps in any random direction, point a corner with one finger and go on, crying “oh why” a few times.
That should work, but…
This is getting some sense, but still can’t understand the reasons.
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