I still wonder what a mkII of this lens can offer over the current model. My copy is really sharp, creamy our of focus rendering, great constrast, stunning colours...it's like a prime lens, but it zooms too. Ok, an Image Stabiliser would be nice, but it's not really essential. The AF is already very fast and reliable...it's got great flare resistance too. Scratching my head really, any ideas? Paint it white?