keep in mind, as always there are many variables that go into the equation. Every boat is different. some boats (like the Hobie16) need alot of rake, others dont.) Hull shape is a big factor in this also things like how "tucked under" the rudders are, the forestay tention... etc.

Probably best to talk with others with your exact boat and discuss their experience and then experiment on your boat.. try to keep all other variables static (same tention on forstay, same wind, same tides, same weight on board, etc)...