Have i understood the kinect calibration correctly if i think that the virtual trackers spawn in and track right relative to themselves as soon as driver4vr is started and that the calibration sequence locates them relative to the HMD?
A suggestion for possible a calibration method relating to this i just though of for the nolo hardware:
Say for example you hold the nolo hmd marker/controllers in turn on your hmd or one of the wands or touch controllers and move them around in the tracked space together.
Could that be a possible/effective way of locating and orienting them into the VR space accurately?