AMCAS vs TMDSAS
What is TMDSAS?
The State of Texas mandates that a max 10% of their class can come from out-of-state. Therefore, it is beneficial for them to have a centralized system of Texas applicants to choose from. This is why most medical schools in Texas use Texas Medical & Dental Schools Application Services (TMDSAS) as a portal for their admissions process.
If you are out-of-state, you may not want to waste your time filling out the TMDSAS. The exception to this would be if you really wanted to go to one of those ten schools.
If you are a Texas resident, you have a particular advantage applying to Texas medical schools.