Great video Seedfork. Thank you for posting it. We have always used the traditional methods of sharpening out tools and untensils, until I saw this used at the above mentioned nursery in New Mexico. The cashier had just opened the package to try it out before putting them on the display end to sell them. She had one of the old pruners that wouldn't cut anything. She looked at the instructions and gave it a try. And yes, you could cut a piece of paper with the blade when she finished. It went from not cutting the tiniest of plant stems to cutting woody stems like they were butter.
I really love mine, and am very glad I found this tool last year. No more dull blades here.