Usually weather helm. I have seldom been on a boat with lee helm.
I also have theory that says that weather helm is induced by heeling. The leeward side is longer that the windward side. Hull speed is a factor of LWL. The leeward side wants to go faster than the windward side, inducing a tendency to round up, thereby inducing weather helm.
When racers want to reduce heeling they change down the foresail. I have also done this. Result - less heel and less weather helm.
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