Hope this might help someone....
To take my 3D touch off the printer I cut through the tape securing the wire. This allowed me to disconnect the connector on 3d touch. After putting everything back together my 3d Touch became very unreliable (probing failing very often).
I think that the problem was linked to the poor connection after I plugged the connector back to 3d Touch. After plugging it properly (this connector can not really be trusted...) and securing the wires with a zip tie it looks like my 3d Touch is back to life. I have also reduced probing speed to 2mm/s
I just completed G48 with 50 repetitions and I got no failed probings and this results:
Mean: -0.151400 Min: -0.160 Max: -0.137 Range: 0.023
Standard Deviation: 0.005781
Will think about increasing probing speed again...
I wonder what sort of probing speeds people are using with 3d Touch