Invisible glissano, best fix?

[Richard Shann]

In some circumstances LilyPond leaves a glissando invisible:

\version "2.19.25"

 {
   d'' 4\glissando  cis'' 4  c''   b' } 

I looked up the issues list and found this:

 { \override Glissando #'minimum-length = #5 
   \override Glissando #'springs-and-rods = #ly:spanner::set-spacing-rods
   d'' 4\glissando  cis'' 4  c''   b' } 

but before I did that I just used a command available in Denemo thus:
 
{ d'' 4\glissando   \once \override NoteColumn.X-offset = #2 
    cis'' 4  c''   b' }

These achieve similar effects for this tiny example, I wonder if someone
could give me some insights into the merits or demerits of these
approaches?

Richard