I had problems with my left hand going numb on me for about 6 months, although it just stopped last month. I went to the doc and he said I was growing a tumor on my nerve in the elbow, most likely the result of running chainsaws a lot. He recommended surgery to remove the tumor, but said there was a 20% chance they might cut the nerve and cause permanent loss of feeling. He said if it worked it would just feel like my hand was immersed in icewater for the rest of my life. I said hell no and started figuring out other things I could do. I now use the anti-vibration gloves while running my saw. I also got a better handsaw that cuts with less effort. And most importantly I stopped sleeping with my hands on my chest (try to keep arms straight and blood flow improves). I never thought about the motor mounts for the saw - that might help even more.