I think there is a little problem with dulling razor term and while sharpening razor taking the small chips out.
If you are sharpening blade every lower grit stone leaves some small chips by doing bread knifing you can take that small chips away. example
if you are setting bevel 1k at the end of it you will have small saw tooths.
by breadknifing you can take them out and move to next grit stone what ever it is.
example 2 k.
after 2k you can do same process.
I am not sure about after 8 k or 16 k i have checked edge after 8/16k never seen any small saw tooths anymore.
you can see them after coticule use very small one.
You will never seen saw tooth after Escher or good Nakayama.
This system i understand and believe so it will work
In the other hand if you don't take saw tooths out by Breadknifing high grit stones norton 8 k level they basically gone.
Now about Dulling edge. I don't understand what is the purpose of it.
if you get used blade and there is chip by dulling the edge you are not taking out chip . you just dull whole length of the edge?
why someone does that i don't know.
what do you achieve doing it no idea.
are there any benefits no idea.
GL