There are differences in the FSP and AGPT programs which prevent you from being automatically accredited for both programs if you are accredited for an FSP registrar first. The main one being that the geographical locations of the AGPT practices are identified by Department of Health (DOH) through the work of the workforce planning and prioritisation organisations.
AGPT practices and supervisors are accredited upfront and then go into the placement process, where registrars rotate every 6 months and there is no guarantee of having a registrar placed. A practice may also have times where they do not have a registrar.
FSP practices and supervisors are nominated via the registrar application and accredited after the registrar has been accepted on the program. The registrar stays at the practice for the entire training time, and you are not limited geographically if you are in a MMM2-7.