I am struggling with my latest build it is footie and I have tried two sets of sails the first following the plan exactly and the second experimenting a little and they both have the same problem with the fore sail or jib attached the boat will not tack across the wind properly and always ends up trapped against pond side, I did shorten the lower wooden pole on the jib to make sure it was not hitting the mast that made no difference. I remove the jib and the boat sails perfectly I have tried a larger rudder that made little difference, but I think my boat looks incomplete without the jib so I was thinking if a smaller jib in the style of a pond yacht might work better.