I finally got this blade. Been wanting it for a long time and waited for the premium ti/m390 variant. It has a very short, 2 inch, blade straight warny great for the main use of opening packages and breaking down cardboard. Fits my med. Hand perfectly and is a great cutter. The detent was a bit strong for me to break in the reverse flick so I lightened it. And the thumb jimping was a bit to sharp. Some Dremel work took care of that. The other thing that could be better is the lock bar access. It's not horrible but could be better. Otherwise this is an excellent Two Sun and a fine addition to the collection.