Hi Folks, Anyone try connecting their retina MacBook 284K display running at 60 Hz? I had read some discussions about the USB C output being potentially limited to 30Hz but this was all based on the available data prior to the launch of this machine. Now that there are plenty of retina MacBooks out in the wild, I was just curious to see if anyone has been successful in running their MBs with a 4k external display. Overall, how is the performance with this setup? Thanks!