The power of JCM's. https://www.youtube.com/watch?v=Y2laBiFJZvM. Those that know what jcm's are will see them at work. Now, go and try that muscle detail with Weightmapping or bulge maps alone. We use Jcm's specifically for this reason. To get defined sculpted mesh detail on specific bends. Call it pollution, I call it definition. WM is fine for meshes where defined detail isn't important., but when you go hi-detail, Jcm's is the way to go. Perfect example? Bend a leg and look at the knee. Instead of it looking like spaghetti you can make it look like an actual knee where you see the knee cap detail all via a single Jcm assigned at that bend position.

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