My 2 sensor room scale config. Experimental set up with different levels doing a great job capturing high/low in 360! (optimal play space here) : r/ oculus
Just 20% Of Rift Users Have A 'Roomscale' Setup
Tutorial: how to use the Oculus Rift and Touch for roomscale VR with just two sensors | 360 Rumors
3 reasons why you might want a four-sensor Oculus Rift setup | Windows Central