What I believe he's trying to suggest is that the heeling moment stays the same, because it's dependent on rig size/height/etc;
When one moves the rig around, you are making changes in righting moment.
Do I understand you correctly, Andrew?
I ain't gonna comment on the correctness of the statement, but here's a link for a GREAT article by James Wharram, he's been designing cats since God was a baby:
http://www.wharram.com/catamaran_stability.shtmlWhen I getaminit, I'll read Wharram's article...
sea ya
tami
