Quote Originally Posted by harpo99999 View Post
looks like it might be a bit more stable during launch than a straight fin rocket due to the aerodynamic forces that look like it should spin, but will it be too much drag or not enough spin?
Ya I think it will spin and that will make any directional instability get spread around in circles, so even if it fly's rather crooked it will go on a spiralling trajectory that on average is very straight.

There is a little scrubber bar in blender that makes the spiralling of the fins more or less intense, It will be lots of fun to print many different versions and see how they compare in the air!