You do 'outside' gibes, where the lazy sheet runs around outside the sail and the forestay. To gibe you give a big ease on the active sheet so the sail flies like a flag (more or less, that never really happens!) in front of the boat while DDW... you then take up on the lazy (now active) sheet as you turn up onto the new side.jackdaw, just bought a doyle asym,haven't used it yet. I can't visualize how the ''tacker'' will work when you gibe.