well I need to know and kind of fast so any response is a good thing thank you. I'll tell you how it feels to me when I sharpen them. I don't feel the edge grabbing my thumb at all when feeling it from the inside going towards the outside of the edge, it feel very flat and dull, the only thing I notice is about a 1/64th inch of raised edge "very small" so definitely not feeling sharp. I can feel it grabbing and sharp when I do the opposite only from the outside in. I'm putting my 15y old son on these and I haven't had a chance to try it myself. The feedback I get from him is that it's faster and more gliding, not much surprised there because of the flatness but also says the edges looses grip for braking or turning very fast and much faster then on regular 1/2 inch hollow. basically that's why I'm trying to figure out if I'm doing the job right. for example if you're suposed to feel 1/32th inch or more of an edge I'm definilty doing something wrong.