From what I've heard the Suporn Clinic often take a few days to reply to emails.
There's a lot of people watching for cancellations, and some use web page monitoring services looking for changes on the schedule page so they can send off a request immediately. I've heard someone automate it more than that, sending off an email automatically when there's a cancellation. Some just make it their home page for their browser.
The schedule will open up eventually, but who knows if you'll get Dr Suporn or Dr Bank. I've heard that Dr Bank is probably very good, but its still too early to tell for sure. If you do book and get Dr Bank you will have the option of cancelling without cost until about 6 weeks before the surgery (I think), so you could just book when you get the chance and decide if you really want him later when there's more info available.