Hi Anthony,

One good comparison point for leeway resistance comparison for canted hulls vs centreboards (drop keels) is the Hobie 16. The boat has deep vee hulls that are well immersed.

But through the years the Hobie sailors have raked (leaned) the rig back to transfer as much load as possible to the deep rudder foils.

This indicates the experience of multihull sailors (actually all sailors, no matter whether mono or multi in general that a deep foil centreboard (drop keel) will give much better resistance to leeway than an immersed hull or shoal keel.

In general foil depth trumps hull area in just about every case.

As far as resistance to flipping in a beam sea a round hull with daggerboard retracted will sideslip more than a deeper vee hull with no centreboard. It is purely about the immersed area which a vee hull has more of. Hull slanting might make some difference but much less than the effect of the pure lateral area presented by the immersed leeward hull.

Best Regards
Michael Storer