Two Flower Luggage:
I agree with you, it takes hours of practice to become that accomplished, strong. and able to open a "standard" Russlock knife. I contend that no one, that i've heard of, on this earth, has a thumb strong enough to operate a "standard" Russlock Knife, with their thumb. Like I stated in a previous post, when I was a young man, in my prime, I could cut 1/4" steel bolts with one hand, using a pair of standard Klein 9" side cutter pliers, and during my long electrical career never found anyone else that could. and was able to win enough money betting on the ability to do so, to buy a show case full of Klein side cutters. Like you stated, that came after many years of using that hand to cut wires, cables, concrete reinforcement rod, etc, but, on my best day I couldn't have opened a Russlock knife with my thumb. I believe there is more to the ability to do it, than practice. Prove me wrong, and find someone that can. I would love to see it done with with someone else's, "standard" Russlock Knife, not the demonstrator's knife. Thanks.
It's Mind Over Matter, If You Don't Mind, It Don't Matter