Just bought a Pocket hobbit from a fellow forumite. it is the black bladed one. I have the Sifu and this baby seems to be the Sifu's young wicked brother! Using the button, it opens fast with no "grit" noticABLE at all. If you use the thumb stud, there is some"grit' noticable. The knife locks up tight and is Razor sharp! The kydex sheatht that comes with it allows a quick deployment of the knife. What do you owners think of this knife;especially its serrated upper part of the blaDe?