Here's a pic of what comes with the SB2 and SB3
It's the powerdrive 121
Here's the pdf link to the instructions:
http://www.cabrinhakites.com/press_r...21Overview.pdf
You notice it says to attach the leash directly to the chicken loop or directly above the QR. This is where I've been attaching mine.
But after reading this thread, I want to attach it to one of the 'flagging rings'.
EDIT: Here's the full 121 manual for those who wish to read more.
http://pr.cabrinhakites.com/manuals/...EnglishWeb.pdf
And this SHOULD be the full manual for the 221 that came with the SB1
http://pr.cabrinhakites.com/manuals/...21_English.pdf