I am a board certified dermatologist. I do not do hair transplants, but discuss them with patients often. I feel compelled to write a strong disagreement here with Dr. Rassman, and the assessment. If you had true DUPA, it would show even with long hair. The photos attached of your hair being wet are still not consistent with DUPA. My assumption is your overt concern for DUPA, when your hair is the way it is swayed a statement from him. A concern for DUPA with your volume of hair is a giant red flag when doing cosmetic procedures, and personally would scream do not proceed, as any physician would not be able to meet your expectation. You have zero deficiencies in hair density of your crown, occipital, parietal, posterior vertex and temporal scalp, and no evidence of DUPA. This can not be magically hidden. And as a expert in dermoscopy (trichology is a component of this field), I would not anticipate the donor density having any true deficiencies as you're stating. Also, the test he instructed you to do is garbage. If you really want to have a true assessment, see a Board-Certified Dermatologist, or hair transplant surgeon using something like Fotofinder (no COI, just a good product for dermoscopy).
https://www.fotofinder-systems.com/technology/hair-consultation/