As Mark stated, there’s a discussion on shoes under a separate posting. I expanded it to include the X-1s recently.
I will post everything after this message on the X-1s there.
The X-1s are very stiff, much like the Salomon TechAmp Pros. The Flyrocs and Delerions flex very well. The Flyrocs have a very agressive tread compared with the X-1s.
Without doing anything more than examining the X-1s, I believe they are strong competition to the TechAmp Pros and I would choose the Flyrocs over the X-1s for most hikes and backpacking trips.
If you can purchase just one pair for the broadest range of conditions, the Flyrocs are definitely my choice right now.
Craig