Ah... The SW is thicker than the 001 which you currently are using. Hence, you will find that the Fitear case will be a more snug fit than may first appear.
As for the SW, while it may be less stiff than the 001, it may nonetheless be damaged if rolled in too small coils. Even if not immediately apparent, with the accretion of time, there may be degradation nonetheless.
Hmm I see...as in strands breaking / micro fracture?
In that case, what would be the guideline for the size of the coil on the SW? ...guess it looks like I have to use the Fitear case...