I found that a touch up on water only once a week or every 6 to 7 shaves will help maintain the razors edge for quite sometime without the need to go back further in the honing process and is also more advantageous than using pastes for this very same task.
My other question is, for those who have nice vintage razors or razors that they want to have forever and hone without using tape, how much metal is removed during the honing process and on touch ups. I set a bevel on a DMT 600/1200 and went to the dilucot method with a milky slurry yesterday. On the DMT I wasn't using very much pressure at all, but it didn't feel like it was removing gobs of metal. Same for my coticule, the slurry never got dark dark grey and I was using quite a bit of pressure, again it didn't feel like I was removing very much metal. I have 4 Filarmonica's all NOS and a LeGrelot and some other razors I consider my pride and joys. I was nervous about honing them, messing up, honing again, and removing an excessive amount of metal and effectively aging the razor prematurely. I'm just looking for some thoughts here. My instinct tells me a razor will last as long a coticule, decades, generations, a lifetime, etc.. Any truth in that thinking?