As a general rule, if you can fly a Pitts, you can fly almost anything.
The S2 is a great training machine.
As with most flight training one of the biggest things is the quality, background and personality of the instructor.
I have never heard anybody who took aerobatic training that in hindsight thought it was anything other than a very good use of time and money.
If the school or individual will send you the training manual with the entry speeds and key points for what you will be learning so you can study and prep in advance, you will get a lot more from the time in the air.
In case the wx does not work out when you are south, you might consider Luke Penner.
Luke Penner is in Manitoba. You can find several of older videos that Flight Chops made.
https://youtu.be/tr7ehD3Mhik Depending on how much RV-8 time and TW time you have, he might even let you have the back seat. You won't find very many instructors that will trust you that far or allow that.
He now teaches in the EXTRA 300. Also a great machine for the job.
He has paid his dues for a lot of years.
https://youtu.be/0KLkOqRkjuM
Have fun!