I am ready to buy my third pair of driver X's and i have no desire to try anything else. I go with the 10.5's and they fit perfect in the medium c60's. For the longest time burton would recommend a large binding with the 10.5 but i did not agree with them and go with the mediums. My only complaint with these boots and everything else burton makes is that they don't last as long as they should. I ride 20-30 times a year and by march of the second season on them they have packed out enough that i am ready for new ones. They start out super super stiff which i like and they eventually break down a quite bit. Most people would probably be fine with them but for me they are ready to be retired or re-sold. I recommendeded them to a few friends and they tried them out and hated them because they were too stiff. One friend took two runs and could not turn on his toes because he thought they were too stiff. He looked like a beginner on them and he threw a fit and went home on a powder day. HILARIOUS.
I would give them five stars but they pack out too quick.