Congratulations David on getting your son a real pocket knife. Like H Richards I have had a folder in my pockets since first grade or before. Unlike H my one room school house did not have a kindergarten, just 1st through 8th, 13 students in all. I was the valedictorian of my class. The wife never fails to mention that I was the only person in my grade. I have a LEEK as well and just cant get used to the design or material. I am a classic slip joint kind of guy. I am telling my age when I mention the 'bumps' on the main blade pull. Who besides myself know why? If you know, you are telling your age.