Rigging freeze values help

[Dragon]

Typically I don't freeze transforms on my rigs. Instead I put a null node above the transform in the same spot (effectively zero-ing the transform, since it is zero units relative to its parent). This will give you a lot more flexibility in the future. If you need to change things, it is a simple matter of altering the parent node. Also, if you are using maya, the xform command does not respond well to frozen transforms and will return values that you might not be expecting.

[Xeash]

I saw one biped rig for maya which used in production tens of films. Its controls' translation are not setted to zero by grouping transform node or transformation freezing. This way some of animation tools for this rig will work propely. But ,suprising, no one of animators didn't feel uncomfortable because of that.
P.S. Freezing make simply non-resettable operations on transform node, so its better to avoid that.

[Poroksy]

I never freeze transformation for any node in the rig. But I do freeze the transformation of the skin mesh. I have encountered problem without freezing it, don't know why though.

[Dragon]

Poroksy, that is generally good practice. Unless you are using something (like a wire from a loft) that was used to build a surface, in your rig. It is more worry-free to have all your meshes frozen, reset and all history removed. This just ensures that you aren't inheriting any hidden "gotcha's" when you receive the model.

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