Best Fipper Knife in My Entire Collection!

Best Fipper Knife in My Entire Collection! This knife completely shocked me when I saw how good the action was on both the opening and the closing. It is such a satisfying feeling when you get a knife that functions so flawlessly. I am not even that much of a fan of flipper knives especially when it is the only method of deployment but when it is this good its hard not to love it. What is you best Flipper knife in your collection? What do you prefer flipper, thumbstud, blade hole , front flipper or two hand openings?