I am new to all of this so I apologize for being unaware if this information is already out there. I started using the M1 blue device a few weeks ago and I have noticed it has helped a decent amount with pain while wearing it. It doesn’t seem to last though once I remove the device. I am using the standard protocol it comes with and wear it about 8 hours a day with (2) 4 hour intervals. I am placing it behind my neck above where I believe C6/C7 to be as that is where I have a bad herniated disc causing cervical radiculopathy down my left arm. I have the rings stacked one on top of another also which I think is what was reccomended. Can anyone let me know if I am doing something wrong or if I should continue doing what I am doing and hopefully in time I will see better lasting results. Thanks so much for any and all help!