To say microdisplacement doesn't work at all with the superfly engine isn't exactly true. It depends on your root node. It works with the poser root node and the physical surface root node. It doesn't work with the cycles root node. Here is a sample. Each is the primitive ball (not the hi-res one). Each has poser's original noise node as the displacement map. The first is the poser root node, then is the physical surface, then cycles and cycles with the subdivision cranked up.

An up-close render of the 4th ball shows there is actual displacement going on, but I see no way of controlling the strength.

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