Pepin,

It could also be swiftcord that we are using....
Anyway, very soft, just core...

:-)

Haha. Swiftcord is not pure dyneema. It's a blend of dyneema and some high grip fiber (polyester? Polypro?). So yes, it's a single braid, but completely different from pure dyneema. What diameter swiftcord are you using on your halyard?