Gizmogirl, thank you so much for your detailed response. I found it to be very informative and helpful. I bought the myotrac 4000 portable emg unit on ebay for $100 and it has worked wonders for me....
Does anyone have a Grindcare device that they would like to sell? The cost of a brand new one is out of my price range. I am in the US. If not, do you where I could buy a used/refurbished one? Or a...