I wish I could understand, I have been playing with frame locks from the beginning and even though my left thumb has no bend, I can open and close them equally well with either hand.
Not all liner locks work as well left as right, but most of those I have tried do.
A. G.
I am left handed, and I totally agree. I can close a knife one-handed with a standard frame or liner lock just as easily with either hand. In fact, I don't need a left handed knife at all. What I do need is to have an adequate cut-away on the left thumb side of the frame to access the opening hole or stud, and a tip down clip.
LionSteel knives are perfect examples of this. My SR1 is entirely adequate for left-handed operation. My TiSpine is useless for left handed opening.