Quote - I'm sure this can be solved in another way, maybee with an empty dial just for limiting but I can't find the equation...

Slaving multiple joint rotations to a single jcm can present more issues than it fixes in many cases. What Les posted does work, but only as well as what you link it too.

Not sure what version of Poser you are setting it up for, but shoulder joints can easily be weight mapped for 9 up.

Don't forget that you can also add helper bones with standard or weight mapped rigging. They can work wonders when used with joints that use all 3 rotations.

Keep in mind that you can have more than one zone if you are doing standard rigging. Mixing weight maps can be done as well, but is not so easily. Weight mapping can also have animated bulge maps.

Another option is a magnet that is part of the rigging.

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