Originally Posted by
cosperryan
I know its probably not the answer you were wanting but that is really the only way to find out whats best. Your thuri could be a normal thuri and I could have a super thuri and the 20k would not improve my edge but it would yours or vice versa. Again I have never used a 20k but I have heard that is supposed to smooth like a natural and likened to even a JNAT but the the guaranteed uniformity of a synthetic. SO you may not even need to do anything buy strop after the 20k.