I seem to spend quite a bit of time on the poop deck on the homeward sailing. The bullwarks are by then pretty well full and so I extend the davit to rectify. The transom's in a hell of a state.
As far as I recall from my Naval Architecture studies, this is all to do with your moment of inertia having an adverse effect on your centre of bouyancy.
I suggest you take a firm hold of your gunwhales and ensure that the fo'c'sle head is suitably braced against an adverse angle of lol.
Basically, once you reach your angle of lol, you're knackered.
Failing that head directly to the shipwrights store and withdraw a sufficiently large enough astern turbine thrust bearing.
Good luck.
I find it adequate enough to empty my sponsons, careen my bottom then splice my main brace.