A scratching nib is not typical of Omas models; collectors report that M nibs of this manufacturer generally write softly. Possible cause is a slight offset of the nib tines; in such cases, exchange at the dealer is recommended, which experience shows uncomplicatedly delivers a new nib. The typical ink flow of Omas fountain pens is, through the ebonite feed, very saturated, which can produce small ink puddles at line crossings at the start; after a few pages this usually settles. On some papers like Moleskine, the nib can additionally feather.