So I sharpened up a good portion of my knives last night and I noticed that my norton 4000/8000 combo is just flaking apart. There is a good 1/2 chunk that just fell off in the water. I have also noticed the 220 side of my 220/1000 is doing the same thing except it is just turning into sludge and washing away. So what is a good 3 set of stones since I do not ever use the 8k side since I like to stop at 4k. I mainly use the 1k and the 4k, budget is the best value for the money but nothing crazy expensive trying to hit the $100-$150 mark.