As for making see through shavings? Meh. A gossemer shaving is usually right at the LAST stroke of a job. If I were to set up a plane to do nothing but those type of shavings, I would be at a single board all day long, not very effective, speed wise.
Usually one of my smoothers is set up with a very sharp blade to take very light shavings. The others are set up to take thicker shavings.
It is nice to have different planes of the same size in the middle of the pack set up for the different jobs the size plane is able to do.
If one can put a shine on a piece of wood with a #6, why follow with a 'smoother?'
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)