Objective arguments for or against either of the two models are scarce; the decision is ultimately a matter of taste. The Pelikan M1000 has a noticeably softer nib; Pelikan nibs are occasionally felt as scratchy but are exchangeable without problems. With the current 149 there are isolated reports of starting problems that can mostly be remedied through thorough cleaning (ultrasonic bath); a nib exchange at the maker is possible. Between the 146 and 149 there is hardly any difference in nib quality or starting behaviour. Vintage 149s from the 1950s are preferred over current models. Tightness problems, e.g. when flying, do not, in experience, occur on the 149.