I picked up a Y.Tanka Suji from JNS and want to put a nice finish on it. It has some really interesting clad lines but they are very faint. I would like a little help on how to do a full polish/kasumi on the knife. Is it necessary to sand down the whole blade first before hitting it with fingerstones? What progression should I do with stones? Is it necessary to start off at a sg500 to remove what looks like a hairline finish? Thanks in advance for any advice.