For example, the (pseudo-code) sequence:
(treble clef, relative c'')
{ b4 r8.[ d16] r8.[ e16] r8.[ g16] }
when I would notate it would always either shove the 8. rest outside of the bar, or collide with it, or otherwise involve ugly beaming. I found I had to re-write the rests as something like { c8.\rest[ } each time, explicitly setting the position, and then use overrides on each group to set the stem length. This seems like pretty kludgy code to me (and a pain to have to do for each beam group). Cf. Gould 165.
Cheers,
A