The lady you spoke with.... Was she the actual RFS who knows the current rules, how they might apply to your individual case, and will do the exam while being your coach and advocate to obtain the medical? Or a well meaning office worker without a medical degree or the specific AME training, but has a memory of a single applicant be issued?
There is a BIG difference between the two.
And remember, if you go with that office, rolling your dice, and cr@p out by being denied, then you have burned your dream of operating a powered aircraft. Forever.
Dr. Bruce Chien (bbchien) who responded in post #5 is one of the few folks in the nation who will be a coach and advocate for difficult case. So it is worth seeking his guidance and adding him to your team. If he will take you on. But as he indicated in post# 5, he has experience with devices such as yours as the treating physician, so he is very familiar with what they do, how they work, and the aeromedical aspects. And he says the outcome will be a denial.
(Edit: John is very spot on about how well Dr. Bruce knows the current rules and guidelines of aeromedical certification. As hard as he works in office assisting his clients, he works as hard or more away from the office in an advocacy and improvement role. During one fly-in, he shared with me what he does to make sure we don't get trampled by the Federal machine and to create new opportunities such as the SSRI protocol. It's a huge amount, and if you look up "hard worker" in the dictionary, Bruce's photo is definitely there.)
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With any AME, never go in for a live "fill out the official paperwork" exam until you know with 100% certainty that FAA will grant you the medical certificate. Until that time, you need to keep this as an "off the FAA books" consult (still pay the AME their fee) to find out items such as, what documentation is required, is the documentation you obtained adequate, will the AME recommend your approval, will the AME always be your advocate should the application get stuck in channels, etc. Only once the AME (general, senior, senior difficult case, RFS, or FAS) will do that for you and say you will be approved, should you submit to a live exam.
Consultative, the FAA isn't officially aware of the effort and your flying privileges aren't in jeopardy.
A live exam is a confirm or deny outcome, even if deferred to OKC for review.
And if denied, even after deferral...........well, we've covered that territory.
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So as others are saying.... either go with Sport Pilot, or wait/hope for passage of PBOR2