You need to ask exactly what movements he's proposing. The CCW rotation he's talking about is probably just a result of the anterior impaction since you have a gummy smile. It's unlikely you'll be getting the posterior downgraft version of CCW surgery since your occlusal plane already looks pretty flat. Ask him how many millimeters he's planning on advancing each jaw and how many millimeters he's impacting you.
Both anterior impaction and maxillary advancement can cause changes to the nose and subnasal area. In particular, nostril flare, tip upturning, and a more convex philtrum. Larger movements are more prone to this issue. I would ask about management of these side effects.
Thanks for the detailed reply, I'm learning so much and it will definitely help me with my appointment. Just a couple more questions. Sorry in advance!
1. Could the angle of the x-ray impact the occlusal plane? I recall feeling like I was looking slightly upwards when I had them done
2. In the edit next to my x-ray, I did not bring the maxillary forward. I removed a portion of the maxillary and angled it upwards in a counter clockwise rotation. Afterwards, I moved the lower jaw forward to accommodate for the change. In the edit, this has changed the occlusal plane, but I feel as if it is within an acceptable level? Do you have any comments regarding my thought process?
Thank you again