jfdupuis said:
Thanks Bart! I understand the concept of putting lather, but I don't find it produces a lot of slickness as you reported earlier. I find that dish soap creates a lot of slickness.
I don't recall reporting about slickness.
I've been playing around some more. This time I used a silversteel 9/16 Dovo (my fist razor, started out as a 5/8"

).
I dulled it on glass, comfirmed that it didn't shave arm hair, and restored it back to HHT-3/4 on yesterday's Les Latneuses, with the dry soap coating still on it. It was an outstanding result, certainly for this razor, that I know to normally only pass HHT-3 at 10-15 mm from the holding point with thick hairs. Again, this score was noticeably better. It took about 150 laps (estimated) and there were traces of black residue on the stone afterwards.
I did have to rinse the blade under hot water and clean it with a tissue paper before it showed any HHT-response.
I repeated it 2 times, with identical results, checking after 20 X-strokes (not there yet), after 40 (still not there yet), and after 80. By that time, the edge was ready. In between attempts, I rubbed the stone with my bare hands.
The 3th time it failed, but the coat of soap was wearing off at places and the stone was turning black near the sides. I decided to clean the stone, rubbing it with my hands under a hot tap. That worked very well.
Next I produced slurry, and took the razor through a quick Dilucot (five fast dilutions with with sets of 30 halfstrokes). I ended the Dilucot with 2 sets of 30 halfstrokes on water. I noticed that the Coticule still had a slight greasiness from the soap. I finished with X-strokes
till just before the stone was dry, leaving it only a bit damp. I estimate it were 80 strokes or so, normal pressure. The Dovo again passes the HHT like no tomorrow.
Stropped and put it aside for test shaving tomorrow.
Stay tuned.
Kind regards,
Bart.