First off the knife looks great - titanium and carbon fiber handle, good steel, nice fit and finish and feels good in your hand. However unlike all of the other Twosun knives I have this on has been difficult to open for me. The flipper is easy to use but I can't get the knack of using the blade cutout to spydie flick or to roll it out open with my thumb. My grip seems to always put pressure on the rather large frame lock when attempting to open. Maybe the knife will loosen up over time.

Some of the greatest knives i have ever had an opportunity to buy !!!! Go twosun go