do as Bert says, there are differences between the rigs over the years and possibly from a modification from a prior owners. the Glessers had Bert's experience with they purchased a new set of sails for their M15. measure your current set of sails to 'get an idea' of the 'ballpark numbers'. not 100% perfect because your old sails are likely stretched. it is best to get rig measurements from the boat when she is rigged. :: Dave Scobie :: Sage Marine --- On Thu, 3/29/12, Flickasf <flickasf@aol.com> wrote:

Note:  if you are getting a new jib made for a M 15 be aware that the forestays on the earlier boats, perhaps all of Jerry's, have a slightly shorter forestay.  I had Pettison make one for me using the measurements from Bob's new 15's (I ordered the sail in 2010) and it had to be shortened.

Bert Felton