Go to Feb 2, 2007 in the matrix at the bottom of the page and you will read this statement from Charley Morgan:
re: the Center-board for your M-35.
Fill the trunk with lead and do not increase the draft, - it is not
need and will reduce access to passes and safe anchorages and refuge
if and when needed.
The M-35 was designed when the first iteration of the IOR rule was
just coming out, later changes made the board obsolesent under that
The additional lead will increase the range of stability and your
perfomance in fresh winds.
Please send us all of your contact info so we can post you and your
boat in the Morgan Rgistry and send a story about your adventures for
the Morgan Chantyman.
Cheers, ~ Charley Morgan
Let me know if I can be of any help to you