I lose feeling in the index, middle and ring fingers of my right hand quite frequently when riding. I can shake my hand out to get some relief and regain feeling. I'm continually fiddling with my hand position and keep trying to reduce the tension in my fingers. Sometimes I can get relief by doing traction by gripping with the fingers and pulling back at the same time. It often helps if I ride with my fingers on the brake lever. I love red lights as it gives me a chance to do some physio. The best hand position I've come up with so far is to have the back of the wrist in the same plane as the forearm and at the same time keep my elbow tucked in. I found that switching from a conventional mouse to a track ball helped a great deal as it puts my hand in more in a tumbs up position. Any suggestions? Has anyone had surgery to correct this?