It’s common to have the cunningham hook into the cringle of the sail, but a lot of people seem to also like to run the cunningham through the cringle and deadhead it to the base of the mast. I guess this extra bit of purchase is helpful.
The choice between mast base control and cockpit or cabin top control is an interesting one. For our boat I think we’re going to short-hand enough that we have to have cockpit control but for course racing mast base control is better. So for a multi-use boat you have to try to anticipate a bit and make the controls work in two different ways.