the star images tonight were all wobbly in the same pattern. I assume that was caused by the shutter on the ingeniously stable rubber band mount.
they also showed some coned and some circled shadows which are not to be explained by that wobble.
that could be just the normal "coning" effect I read about but it could also be something else.
I read Shira'z
thread about a DIY additional collimation tool and checked my super duper collimation using a small flash light and a baker's syringe - there's lots of room for improvement, too.