It's impossible to know what Dr. Curtis's priority is, the maximum obtainable feminization results with safety, or the maximum obtainable profit margin with slow, but eventual feminization. He does offer convenience, doesn't he?
Many doctors administer HRT without ever doing blood work to determine testosterone or estrogen blood levels, preferring to rely upon the response of each individual patient. Makes sense, since the blood levels really don't give a reliable indication of how someone feels or responds to HRT, for example, my blood levels had been within correct tolerances for the anti androgen, yet, I'd occasionally have undesirable side effects. Blood work is routinely done, but other functions are monitored.
What I'm saying, is there is no ONE WAY of administering HRT, and what works best is often the result of trial and error with each patient. An experienced doctor will have an established starting point and a typical way of advancing, with adjustments being made as necessary. A doctor should be flexible, and the patient realistic. I suppose you'll realize desired gains with Dr. Curtis, but the progress may be slow, minimal, and expensive; I see that this clinic is on the expensive side. You may find faster results at a lower cost elsewhere. Personally, I'd find another doctor, someone more in tune with his client.