If you spend a lot of time using CAD you must have experienced RSI or carpal tunnel syndrome. How do you deal with it? Me, I read an article about how gripping /clenching with the hand in a prone (palm down) position is the worst thing you could do to your hand but holding the mouse in a supine position (palm up, then close hand onto mouse) significantly relieves stress and releases more power. They sell vertical and upside-down mouse/mousepad contraptions based on that theory but I just made my own using a bookend and some duct tape. It works for me, never had RSI again. However that article was the only one to proffer the above theory, out of about 20 or so google links I checked out. So I've always wondered, did some scammer's theory just happen to work for me? Any karate experts out there who might be able to shed light on the above ...(which position releases the most power from the hand, prone or supine)?