T-Dog, your approach and mindset is spot-on! Education will only lead to knowledge. You will gain a wealth of knowledge at this place, that I promise you!
My journey with this also started with my GP, which by coincidence is a female M.D. She didn't have any problem admitting that BHRT and anti-aging therapies was not her strong point. When I went to a specialized HRT clinic, they did not take over as my PCP, they just handle the hormonal part of my health care. My GP still does my health exams and everything else, and she is very supportive with my HRT endeavors. I provide her with detail facts about my protocol, and administration thereof.
Through the years she has gained a better insight to how this all works, and she has seen the results first hand! Heck, the thyroid discussion I had with her one day was worth the copay itself! If anything, it got her thinking a little more about how it all comes together.
Keep an open mind, and you don't have to look at it as a one or the other situation. A specialized clinic like Defy would just be a collaboration to your current health program.