inconspicuous ties

[Dan Eble]

\version “2.14.0”
\layout { indent = 0 }
\paper { paper-width = 6 \cm }

%% The first and second ties look different. Is there a good reason?
%% IMHO, the first is not conspicuous enough because it is too close
%% to the staff line.
\score {{ f'4 f'~ f'8 f'~ f'4 }}

%% This tie is nearly invisible before the line break.
\score {{ r2 f'8 f' f' f'~ \break | f'2 r }}

Regards,
— 
Dan