ok. i think two topics might be confused in this thread:
1. does driver4vr supports properly body tracking?
2. can driver4vr supplement drawbacks of WMR system.
I would like first to address first topic and I am going to get my hands on that this week.
For 2nd topic, I will also test and see if there can be benefit from using Kinect. WMR is 360 degree system. Kinect is front facing. so it will potentially solve 50% of tracking problem for you. Depending on which direction you face.