: Weathercocking happens when the center of lateral resistance to the water is
: in front of the center of lateral resistance to the wind. The stern is
: being blown around like a weathervane, pointing the bow into the wind.
: Adding weight aft will move the center of lateral resistance to the water
: aft, a good thing. So will lowering a skeg. The bad thing is that if you
: move weight aft by moving the paddler you also move the center of lateral
: resistance to the wind aft.

Moving the weight of the paddler back lowers the rear deck and raises the front deck creating more forward "sail" area on the kayak, which seems to compensate for moving the "sail" area of the paddler, himself, back.

Moving the weight of the paddler back lowers the rear keel and raises the front keel which anchors the stern of the kayak in the water.

The net effect of just moving the paddler back a couple inches makes quite a difference in reducing weathercocking.