I actually learned how to flick deploy it with the thumb hole. I was just curious to see if I can, with a bit of practice it can be done. With that being said, I was just messing around, when I do use the knife I use the flipper.
To me this knife is just as easy to flip open as it is to flick open. I usually find myself forgetting that it is a flipper and end up flicking it open. Hopefully one day my brain will learn.