Hello fellow Monty owners, I am the owner of "Seaweed", a 1982 M-17, galley style, serial number MMP173490482. I've owned it since 2008 and have been very happy with it. It has now come time for me to order new sails for it; the old ones are almost 40 years old and show it. I talked to Harry at EP Sails, and he told me that based on his information the luff of the main could be either 19'4" = 232" (for the standard rig) or 20'9" (for the tall rig). However, when I went and measured my old main, the luff came to 222.5", which is about 10" shorter than even the standard rig. I am hoping that maybe someone remembers whether a number of M-17's in that time period were made with shorter masts, and what the sizes of the sails for this shorter version was. I am planning on ordering a main and a standard jib -- my old genoa is in good shape, and I don't use it much on Lake Michigan. Thanks for all suggestions! Best,Andrei.