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
Easiest Setup for Oculus Rift Room-scale Tracking (without drilling holes)
Just 20% Of Rift Users Have A 'Roomscale' Setup | UploadVR
Tutorial: how to use the Oculus Rift and Touch for roomscale VR with just two sensors - 360 Rumors
Oculus Demonstrates Their Own 'Room-scale' Tracking Capability at E3 2015 – Road to VR