I would bet that your normal density is not 200 follicular units per square cm. These numbers are unrealistic because it would deplete your donor area so much that as you continue to bald, which you will, you will have no hair to use in the donor area. These numbers, although they can be done as shown here, are unrealistic from a Master Plan approach to hair transplantation.
I was the first doctor to define dense packing of grafts in 1993-4, and I published it in the Hair Transplant Forum. However, I used it only on single hairs in the leading frontal edge. Today, I no longer use these number in the leading edge and I get terrific hairlines with a more reasonable density.