The VDB Smooth SDF produces incorrect values for distance from the surface. If you convert it to geometry and make SDF again, the values will change. Therefore, the result cannot be used for accurate distance calculations (both outside and inside).
This is a simple python script to change file paths in selected Read and Write nodes. You can select part of the Nuke script, and if the selected nodes have a "file" knob, it will be changed:
SyncToy 2.1 is no longer available for download from the Mircosoft website. But it still works great on Windows 10 and is used in many cases of work automation. You can download the latest release of SyncToy 2.1 here.