I went through the 7-day trial with the HF10 Spinal Cord Stimulator mid-October. I have had back issues since 1976, and spinal fusion (L2-S1) in 2009, and 2 compression fractures following the fusion. I have dealt with chronic nerve pain (neuropathy and radiculopathy) ever since. The CF10 trial was a complete success for me, and am still waiting for the permanent implant. This device is MRI compatible. Just frustrated with the unrealistic time lag between trial and permanent implant. Surgeon's schedule is booked into end of Feb, possibly March 2020.