I just ordered a norton 4k/8k and Lynn's dvd. I have a Tony Miller 3" wide honey brown already and a number of razors. I was just wondering, is this the only stone i need to get my other razors sharpened and ready to shave or do I need to pick up something finer for a final polish. I was just wondering if the 8k side was fine enough to get that final edge. And can somebody tell me how to mark the pencil grid on the norton to get it lapped and ready to hone.