I find that the OTF knives are the best fit for how I use them. For instance I have an automatic Buck 110 and I love it, but press the button and it cracks right open. It’s only one way though. So like a single action OTF, I have to manually bring the blade back. Since it’s auto, there is spring resistance. I love the knife, but I find that once it’s open I usually complete what I’m doing then close it. With a dual action OTF I’ll work on something, whether it’s cutting some insulation, cutting the wrapper off a bottle of wine, or opening an amazon box, then close it and put it right away. Also they’re a lot of fun to just open and close.