Oh, where to begin. Maybe I have deformed hands, but I get no grip/leverage on the knife in any position close to putting a finger on the lock. The butt of the handle is nearly at the top of my palm and there is simply no leverage. If the lock were near the blade itself, I'd have no problem. The lock is very stiff and tight and the only hand I have with fingers strong enough to mangle its way into pushing the lockbar down without putting my fingers around the blade so that it can't be flicked out is my left hand, and it takes a lot of concentration and effort to do so. Naturally, the centafante is right hand clip only. Doesn't matter, I still have no leverage and it takes me insane concentration and effort to push that lockbar down, even if I had leverage since the lock is so stiff.
Lastly, even with the bar pushed down, when I flick it, the blade still sticks to the handle slabs and doesn't extend to fully locked position 2/3 of the time. This would have been easy after I pryed the slabs open last night, but the knife has returned to stock NIB stiffness after I put the clip back on.
Must just be me...