I am new at this sharpening stuff. I bought an Edge Pro Proffessional. I am still learning how to use it correctly. My question is this: Just for the fun of it I would like to buy a WSKO. I would mostly use it to quickly sharpen freinds knives until I get better with the Edge Pro. Would it be considered foolish to have them both? Or do you see a purpose to both? Thanks in advance.