The suitability of a BB nib depends strongly on the individual handwriting; small writing fits BB worse than large writing. Collectors with large handwriting report that a BB on the 149 is very good for notebooks, letters and cards — that is, quite suitable for everyday use — and that Montblanc nibs tend to write broader than comparable nibs of other manufacturers (e.g. Kaweco, Lamy). For finer comments or marginal notes, narrower nibs (EF/F) or a rollerball are recommended. Before purchase one should bring one's own paper to the boutique and test extensively.