If you don't already have OpenVR Input Emulator for Steam VR, you should get it. A 5 degree difference in the controller tilt makes a huge difference with the WMR controllers. :
RubberRoss on Twitter: "Anyone ever merged an oculus rift play space with a HTC playspace? It's apparently doable so you can use HTC trackers. OpenVR-SpaceCalibrator can achieve it.. But after following tutorials