My snow tires tend to be on from early October to mid April although snow in September is not unheard of or a late April or early May surprise. I drove studded tires for a long time, but after driving studless Blizzak's, I will not go back. Michelin Ice X's are also a good choice. I went with the Blizzaks because Costco had them in stock and on sale here, so no shipping. You just do not to run them when it is too warm or they will wear fast. The Focus options for 16 inch wheels work great and there were zero problems installing.
I will get myself in a photo at some point and a review as I get more experience with the car.
I agree! I went off the Focus sizings when I bought my Michelin X-ice in 16 inch size for the C-max. I hope to get the stock wheels and tires (with the TPMS sensors) installed back on our car in late March or early April. I don't know for sure, but I actually think that a 15" wheel will fit...