When you are sailing downwind, are you always trying to be on one hull? I always want to be on one hull unless it will lead to a swim.

I have 2 spins. A very "full" cut spin and a very flat one. I've found it's easier for me to fly a hull using the very flat one, I can head up, get the hull up, accelerate and ride it downwind on one hull much easier than with the very full cut spin, which doesn't want to go high enough to get the hull up in medium air.

In heavier air, I run deep on two hulls usually (when running on one will most likely result in a pitch-pole) so the fuller cut spin is better for that.

It is a little counter-intuitive, you would think the flater spin would be better (de-powered) in bigger winds but actually it's better in lighter air as you must head up higher to get the hull up. The fuller spin is better for running deep on two hulls in big air.