OK, being new at this, my thirst for knowledge is never-ending.

*QUESTION* .....How sharp should you expect a 4000 Norton to get a razor ?.....Hair test ?.....Thumbnail/Thumbpad test ?.....Strop and shave ?

Same question for the 8000 Norton..............

After the 8000, my only option at this time is the yellow coticule, and (from what I understand) that does not sharpen, but simply "tricks up" the edge......maybe not even to an extent that would be noticable.....(or am I wrong on this) ?

Of course I know that the last thing you do before you shave is strop.

Thanks in advance for your opinions !

Marko......