Yep, I agree, dynamic is the only way out.
Most of what is being released is dynamic.

You get that when you make the rig too complicated with a zillion JCM's, hidden bones, and all other hidden garbadge.

All JCM's and hidden things should have been removed before going the WMap direction.

You know you are in object and or rigging trouble from the very first moment you need that very first JCM.

It is better to adapt the object file and the basic rigging.
Since WMapping, I have never needed a JCM any more.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!