stability curves

Anyone who has not seen the December issue of Woodenboat needs to find one and read Phil Bolger's article on shoal draft and self righting.  This is a very interesting piece with pictures of his St. Valery, and William D. Jochems designs, and interesting stability curves for both of them.  I say interesting, because I don't think I have ever seen the immersion of the spars factored in the these graphs before.  He shows a BIG increase in righting moment at and beyond about 95 degrees.  Here is the curve:
 
 
I thought that caught in a blow in my Caprice, I would fold the mast down, raise the leeboard, and go below.  Should I reconsider and leave the mast up?  Should I run some extra PFDs up with the halyard?
 
Chuck