hi a friend asked me if I can sharpen his knifes. He has sabatier carbon knifes and global (not forged). I googled and global it says 15 degree angle, and sabatier can be 20-25 degrees. Any comments? I only have 1k, 3k and upwards. Do I need a coarser stone for those knifes or can I start at 1k? Seems like some ppl say 1k can be enough as last stone, but I guess I can do some finishing on the 3k stone. Comments? Will the burr be easier to feel or the same as jknifes?