I have to chime in here, I found the Native III (3D) by accident. I was looking for a nice folder in VG 10 (about 3"), and settled on the Delica. Of course I had to try an Endura. Then I saw the Native, liked the style, and ordered one. I have to say, I am VERY impressed with this little guy. Talk about stout...
Now, mind you, even with the hole, I generally use 2 hands to open a knife, no other reason other than clumsiness. I love the solid snap that I get. Maybe it's stiff for one-handed opening, but for 2 handed, I think it's perfect, I would rather err on the side of security.
Now I can't decide which of the 3 knives I like more...
I guess what I'm saying Lavan, if you are looking for a one-handed opener, perhaps one of the other models would be better for your purposes. My Delica can open pretty easily with one hand.