I also stopped Copaxone for Tecfidera. The reason that I switched was that, after 10 years on Copaxone, I started to see deterioration in my condition. Unfortunately, the deterioration has continued on Tecfidera. It seems like it may be less effective, although there is no telling what deterioration I would have seen over the past year if I had stayed on Copaxone. After all, I switched because the Copaxone wasn't working.
For now I'm staying on Tecfidera, getting stricter on the Swank diet, and trying Nucca chiropractic. Still working, walking, clumsily playing soccer with my boys. Starting to develop a twitch in my left pinky finger and neuropathy in hands and feet.