Great Idea!
I’ve done this experiment in the past!
It was when I first started honing, and I’ve encouraged every ‘apprentice’ that I’ve had to do the same! I recommend that after the blade is off the stone that they strop 100 on the cloth and 200 on the leather.
As suggested do the same off of the 4K! You will be surprised!
While I typically finish off of a Naniwa 12k I could very easily live with the edge off of the Norton 8K to the end of my days!