Thank you all for the replies!
Transsonic2000, I am with PPL, but I am getting informed about the different options that the schools offer and
AFAIK when you get into a school, you have to follow "their" path, either 2 or 3 modules. So I consider that it's important to get this information prior to entering the GS.
I will have full time to study, so maybe I take two sittings