So ive been trying to lapp my Norton combo all day. I got them all done but the 8K. After i got fed up with how long it was taking to lapp the hones, i jumped on here and did some research. I found the thread about the flattening stone not being flat. This almost made me stop but i was (i thought ) halfway done so i just kept at it. Once i get them flat ill never half to do it again and thats a plus.