I’ve been using them the last two years (without a shot) but have found a good way to sharpen them. Go to an auto parts store and find some wet/dry sand paper…320, 600 and 1200.
Start with the 320 and place on a glass service and make 15 to 20 passes per side or until you have a good edge…switch to the 600 and do the same thing. Move the point forward on the paper.
The last two steps are as follows…place the 1200 grit on the glass and add water, apply light pressure and do 10 to 15 passes per side and then go backwards on a piece of corrugate a couple of times. I have mine polished and very sharp.
I can’t wait to see the damage first hand!
Josh