flat-felling the side-seams require
making sure you get it right the first
time. i've had my fair share of bad
experiences -- i.e. edges over-fraying,
yadda, yadda...
not a good look.
then one day i meet mrs. rolled-hemmer
foot here on my last trip to hong kong.
this baby sews a clean 3/16" flat-felled
seem and hem that turns any home-made
shirt into a thing of awesomeness.