We have a 1994 35.5 hunter legend with new sails and it has created a problem for us to the point where we would rather just head sail than fight with the main when lowering and putting the main cover back on...I would like to fix this by adding a mack pack or other brand system. My one concern is keeping the top of the canvas open so the sail does in fact slide itself into the pack..I have seen some that have fiberglas battens along the top and that looks good and others without any system to keep it open...some owners reporting the pack collapsing when the main is lowered and it ends up on top of the pack...any comments and your feedback on what you have is appreciated...thanks...craig