What is it that you'd like to know? Telly should have given you some info about that hone. Fast, Slow, Etc....Nakayama'a are great hones, light water, use a spray bottle, spritz it and go....
The stone is a med-high on the hardness scale, and all other marks are at the top. To quote Telly: "The edge this stone will give cant be beat!" What else would I need to know?
More just looking for tips to get the best performance.