Small but important tip : don’t forget that you can use Snapshots below the History in the Editor panel to save the currently used parameter. That way, it will be easier for you to go back to the non-printing version. I also recall that the current parameter set is saved in the pp3 file when you close the Editor tab (in multiple editor mode) or when you edit a new image (in single editor mode), so it’s important to use the correct Snapshot or select the corect entry in the History before closing the Editor or Edit new image.
Moreover, if you want to update the sidecar pp3 file once your done with the non-printing version (i.e. just before creating the Snapshot), you can use the CTRL+SHIFT+s shortcut of the Editor panel. This will prevent any data loss if RT crash during adjusting the printing version.