Hi soundgrrl - I am sure a Cal
owner will be along soon. I can't give a definitive answer but to me it is largely dependent on your freeboard at teh transom.
i.e. - If you have to lower the engine
on the transom too far to get the leg in the water
it makes it difficult to operate the controls. OTOH having the leg too low makes it difficult to raise the prop out of the water
I personally would take measurements of the engine head
, where I want the engine head
to ride under way and then figure out how long the leg needs to be.
BTW - what is the outboard