I have a Hunter Legend 40.5 with the standard "Dutchman Flaking System" on the mainsail. I want to install a "stack pack" type sail cover, which I plan to design and sew myself. My main question is: Will I need to install a "lazy jack" type of flaking system to control the tail end of the lowered sail and make the sail cover work?Or, would a control line from the aft end of the boom, thru the hem of the sailcover, up to a point on the mast help contain the tail of the lowered mainsail especially? The "Dutchman" adequately controls the rest of the main.I am willing to switch to the "lazy jack" type system, however, after using the "Dutchman" for three seasons, I like it. So, "if it ain't broke, why fix it"?