You may want to contact Don at Deep Exposure Dive Center. While I believe he runs TDI technical courses, he may be able to run PADI Tec courses as well or at least know of someone who does. His shop in my opinion is one of the better equipped for technical diving on island. He has his own compressor, a booster and pumps trimix and oxygen. Most shops on the island have to go through Meridiano 87 for this. I've never taken any training from them but his shop is one of the better equipped to handle gas for technical divers on the island.
I mentioned that I searched for a tech operator in Cozumel a few years ago, and I ended up using Deep Exposure. I joined with a PADI tech (Trimix) class on their dives. The instructor was from Texas, which is where he got his students. They went to Cozumel for their deep dives, and Don let them do them off his boat. So, if you bring your own instructor, you can have a PADI tech class through Deep Exposure. (By the way, through a real coincidence, I ended up at the same dive site as that instructor a year later in New Mexico.)
I watched that class very carefully. The instructor was extremely thorough and demanding. Those students were darn good when they were done.
So if you want to bring your own instructor, I can offer some suggestions.
