update of this nibs serial :
I've finally found the felt nibs just 3 corners around here, in a reseller's shop, at the same price (10€),
so I've saved the shipping charges (= 10€ through the wacom online-store), and 0 day to wait for ...
OK, after a quick test, yes, it's definitively less "slippery" than the classic nib,
the drawing strokes offers more resistance, and the control seems to be better,
though I don't like so much the felt/sheet contact "feeling", nor the sound,
I was looking for this kind of resistance, but with the "feeling" of the standard plastic nib ...
so I experimented several (about 20) paper/plastic sheets to overlay the wacom thick transparent sheet,
... and Hourra! I've found THE ONE which give me plain satisfaction!
an out of date sheet (polyester based) of orthochromatic high contrast film!
it's less slippery, (cause the emulsion I think), offers a good resistance to the pen (with classic nib),
and seems solid (keeping healthy) enough to use it for long time ...
for info, the films come from an old (out of date) stock of a print-press,
it's called "Linoline", made by "Guilleminot", used (anymore?) in photocompositing ...
maybe I'll be the only single wacom user to use this trick, but, yes! it woks beatifully!
I can draw now with more pleasure than ever, it's subtle, but it DOES make the difference to me...
end of this episode, I have to see now how much it will be resistant, in times,
whether I have to change it every ... 3 weeks, 3 months, 3 years ...?