It's my favorite as well. It's the most auto-like AO I've ever seen and I like the blade shape much better than the 580 (not to mention the blade material).
My wish list for refining this knife:
- A deep-carry clip (at least as an option).
- A smooth ramp to the thumb stud since your thumb must slide across the grip cuts when opening it. They did sculpt around the thumb stud area, but the handle still creates resistance.
- Jimping (for lack of a better term) on the top and bottom of the liner near the base of the blade, as seen on basically every McHenry & Williams design they make.
With those, it'd be easier to carry, easier to open, and more usable for precision cutting with the tip. In spite of these, though, I'm more than happy with it.
On pure personal preference, I'd like full G-10 handles (perhaps in a different color/pattern from the 580 to distinguish it), too, since the aluminum is pretty flashy.