I am using xethru explorer with a x2m200 that we just received this week. It seems to not work very well, having a hard time detecting and monitoring respiration. It seems to detect motion ok, but at various distances and sensitivity setting, the respiration sensing is dodgy at best, often losing track and very rarely detecting breath, or actually connecting the respiration to what was actually happening. I am also using the python driver and that behaves largely the same. When other people use theirs, is it generally on point, or does it only detect and follow breath 50% of the time at most, often less?