I've been bugging
John with some Jenny/Canuck questions for my Olimp kit, and having a hard time sorting out rigging differences. I made this diagram to try to simplify the question, and he asked that I post it over here, so, here goes. (I'm guessing that means it's right...

)
For a late Jenny, (I'd) have the red, green and purple lines.
For an early Jenny, (I'd) have the green and purple lines.
For a Canuck, it's just the blue and purple lines.