I recently bought a Pelikan M400 EF nib that was smooth like butter and wrote very nicely, except it had restricted flow in certain directions (typical of Pelikan EF nibs). In the past I have attempted to adjust myself several nibs with more or less success.
Now all I have in my house is a nail buff and other items like leather, glass, what not.
After increasing the flow and correctly re-aligning the tines, it wrote perfect except it had a bit of tooth, something to be expected when opening up a nib which was not polished with having it open like this in mind. I took a nailbuff and only gently did some figure 8's on the 12000 grit surface and although it writes smooth like butter in horizontal strokes, when doing a normal downwards stroke it has a very fine friction like tooth as if writing on sandy paper. Hard to explain it, it's not scratchy but it's not a smooth feedback either. It just doesn't glide downwards, it's got surface friction and is extremely annoying.
I tried to do more 8's and also sideways, downwards, all sort of directions like recommended in classic nib smoothing textbooks, but it won't go away. In fact I even managed to get it toothy in all directions and then smooth again but on downwards strokes it keeps having that friction thing.
Please help! I ruined many nibs before and they are expensive. I only have this nail buff and nothing like mylar or lapping film in my house and buying them will take weeks from where I live. I thought maybe using a leather strap? A paper bag? A glass mirror? Tried them all and no success. The paper bag makes it worse actually.
Does anyone know of any household items with the right abrasion for making a butter smooth nib? And how about fixing it on downwards strokes in particular because the other directions seem to be just fine.
Many thanks in advance!