c 0063 LETTER C
ϲ 03F2 LUNATE SIGMA
ͼ 037C DOTTED LUNATE SIGMA
ɔ 0254 LETTER OPEN O
ͻ 037B REVERSED LUNATE SIGMA
ͽ 037D REVERSED DOTTED LUNATE SIGMA
(And accented versions of these.)
The dotted lunate sigmas (right) have a much more even length of arms compared to all other "c" shapes (middle). I personally prefer the more uniform shape, and it is more in line with APL385 (right):
The capitals have slightly longer bottom arm in APL387 (left), but not in APL385 (right), so maybe that's just each font's own style:
Maybe a compromise is best?
(And accented versions of these.)
The dotted lunate sigmas (right) have a much more even length of arms compared to all other "c" shapes (middle). I personally prefer the more uniform shape, and it is more in line with APL385 (right):
The capitals have slightly longer bottom arm in APL387 (left), but not in APL385 (right), so maybe that's just each font's own style:
Maybe a compromise is best?