Thanks for the great questions! I have some follow up:
Am I expecting the answer to be a measurement/sq space? What are good density?
What are common punch sizes and what would be the difference between bigger and smaller punch sizes?
Also would manual vs motor define a doctor's experience? When should a patient prefer manual vs motor?
Also, how do I describe how high I'd like to go up in the front? Do I just measure in cm and tell him the length to work on from left corner, middle front and right corner?