The original post noted:
"If I understand what I''ve read, when sailing on the wind the keel produces lift which offsets the heel of the boat caused by the leeward lift of the sails. The two opposing forces are what "squirt" the boat forward."
While the two opposing forces (lift from sails and lift from keel or centerboard) push the boat forward, I thought that both forces tend to increase heel.
Are the forces acting against heel the weight of the keel and/or ballast (including crew) and the buouyancy of the hull?