I knew I would forget something! I do have said "strap" that goes on the tack, that wraps around the forestay too!
As mentioned, I put on an adjustable tack
line, while I have not used a set length tack
line, as Valiente, you can play with the tack line to get max power out of the sail in different conditions.
I have a North G2 for what it is worth.
Marty