I currently have a Panasonic G3 camera which has a very annoying design fault, namely it is all too easy to operate some of the buttons below the built in thumb rest. As a result I often find that I am inadvertently shooting at a absurdly high ISO setting or have changed the focussing method. At one point I even discovered that I had altered the daylight white balance I habitually use to a custom setting with way too much magenta, something which required several different key presses! It occurs to me that a third party thumb rest to move my thumb further away from these controls might help prevent this happening so frequently and recently came across the Lensmate range. Unfortunately there is nothing in that company's catalogue specifically designed for Panasonic cameras, but I did wonder whether anyone has experience of using a third party product, Lensmate or otherwise, on a G3?