mostly the one which your intake is before your SPM result comes out.
in the 80's and 90's, asrama and MARA kids are usually sent to 'training' for overseas straight away after the SPM exam. This was bcoz these student are bunch of good ones in their trial results. Some in January were already sent overseas, like Japan, USA, etc.
But quality wise in career we normal kids still scores!
So don't worry, just have in mind, WTH SPM is for? It all depends on your SPM. Unless that you want to go to private college, you can just take your result(if good) and go in. Some private school kids are doing that already now.