Non-SDS visas have a success rate slightly lower than SDS visas. It is perceived that the average annual approval rate is 65% for non-SDS study visas as compared to 75–85% for SDS study visa. However, this difference could also be due to the fact that an individual who once got a refusal in SDS, reapplies under non-SDS, and their profile might have been lacking among other aspects that got them a refusal in the first place under SDS. Always remember that there is no guarantee of getting a study visa, whether it is under SDS or non-SDS. Nobody can guarantee you a visa.