Delivery bottlenecks occur with other makers too (e.g. Pelikan Edelstein); concrete reasons are often not known to dealers, so only patience helps. The reformulated Montblanc inks in changed bottle form are not necessarily better or worse but seem more strongly saturated, by which flushing and cleaning take longer; an exchange of old remainder stocks is not worthwhile. Reports on flow behaviour contradict one another: some find Midnight Blue better-flowing than Blue-Black, others vice versa; the new violet ink counts as rather dry and tends to smear. Ink should be stored darkly, in any case not in direct sun, since colour tones can change or fade.