I used Sportec M1s before and was very happy with the feel of them , being an aggressive canyon carver they served me well. The only problem I found is that they wear out Really quick for my taste and pocket.
I am giving a try to 207s now, so far so good, the tire feels different than M1 for sure. You can feel 207 constantly sliding a tiny bit when riding hard, while M1 was sticking like glue.