I am still having a hard time understanding what you are saying. If I am wrong please correct me. It is the sight that hasn't been approved not the stimulator. Right? the stimulator is quite versatile, christopher Reeves wears one to ride an exercise bike. It has a mode to eliminate back pain. The two that I have, have been put into place during a 'blind study'.Should I put out a pool to win if you guess the right spot. Both sides are in the same control site. I'm still not sure which is which. Judith one more time which is which? Or what is and what isn't? Would you like in on the pool? jjjane