Has anyone tried the new 6d on indoor basketball, or something that is going to push the AF system? I've got a 50d and simply can't get the shutter speeds needed to freeze the action at the local indoor gyms. I'm looking at the either the 5d mkiii or the 6d. Not sure about the focus tracking of the 6d, but all tests look like it does better in low light situations. I've googled around on the internet and can't find too much on the 6d based on indoor sports shooting. If anyone on here uses the 6d for indoor sports, I'd be very interested to hear what you had to say or could point me to some places that focus reviews based on that. Thanks!