Does making the purple slurry on the yellow allow you to get the razor sharp? Or sharper than just the yellow with yellow slurry? Does it cut at a different rate?

At the moment I really have no reason to use a slurry other than I just want to learn what I can do with the stone I have. I have reset a few bevels with it, but I do not remember the number of strokes. It had to be more than 50, though, and I was aiming for a little bit of overkill. I couldn't tell you what the minimum would be to reset a bevel. I have been pretty much erasing any trace of the coticle with slurry with a shapton 12k pro, which cuts pretty fast, and then finishing on the coticle with water, so I can't say how it effects the final edge. I will say that it does a pretty good job of getting an edge in the ballpark for finishing. I have yet to really do much with the blue.

As far as finishing with the yellow coticle with water, 30 laps after the 12k does a good job for me. Then onto at least a hundred laps on leather. I will say that more laps on the leather does make a difference. I found today, which was the second shave off of the same carbon steel dovo razor finished as described above, that the shave was a little bit better than the first (seemed a little bit smoother and cut just a little bit better). I attribute that to the added laps on the strop before shaving, which was about a hundred. So, 200 laps on leather makes for a decent shave. The amount of laps on leather is making me consider getting a canvas strop as well.