The Mack Pack uses something similar to your photo of the tabs that connect the 2 sides of the pack, but they are thin enough to put under the bolt-rope on the boom. I was very skeptical about cutting my main sail, which was the original Mack Pack design if you had a bolt rope. When I talked to them last year at Strictly Sail Chicago, they said them came up with this new design for a rope bolt main.
It works great, and removing the sail at the end of the season was a snap....the pack stayed in place, and the sail slipped right over the tabs in the track.
Greg
It works great, and removing the sail at the end of the season was a snap....the pack stayed in place, and the sail slipped right over the tabs in the track.
Greg