To CANT or not to CANT, that is the question...

Anyone:
Which popular production cats have canted hulls?

Cat designers:
Theory: Why cant the hulls?
How much? Benefits? Drawbacks?
Conditions where canted hulls will help you? Hurt you?
Effect on upwind vs downwind performance?
Effect on tacking/gybing?
Impact of differnt hull shapes on canting - V vs rounded vs flat?
If the hulls and CB's are canted, are the rudders canted as well? What a drag?
Bottom line: is it advantageous and does it "work"?

Cat sailors/racers:
When you sail/race cats with canted hulls vs non-canted do you actually notice a difference? Which do you prefer and why?

I wish I could answer all these questions, but I CANT!!!

Jerry