If the wind is greater than 7, I do everything I can to get and keep one hull out of the water at all times. I don't end up paint too much attention to the angle of apparent wind, but it is usually 90 or a little less. I still find I'm sailing much deeper than the A-cats and sloops w/o spin.
I set the main and traveller according to the tell tales and then trim the spin continuously as well as keep adjusting my weight and position on the boat.
Eric Poulsen A-class USA 203 Ultimate 20 Central California