trial? is that spm trial? it depends. i used it to get into taylor's college last time. but ultimately it's your actual spm result that counts.

yeah, i suppose to do both engineering and medicine you've got to be an outstanding student. especially if you're aiming for local unis, u've got to do your stpm well.

from what i've heard, stpm's syllabus is much more detailed compared to matriculation. that means u've more to study in stpm. i know form 6's syllabus is currently in english, no idea bout matriculation though.

If i've not mistaken, in malaysia, after your basic degree you'll have to do 1 year housemanship and 3 years compulsory government service. (i'm not very sure, correct me if i'm wrong).

Regarding which path to take, you'll have to first decide whether you want to enter local unis or not. To be able to get into local unis (UM etc) you'll have to go for stpm or matriculation.
But if you don't mind not entering local unis, you could take other pre-u courses such as a-levels and sam. And after that your choices would be private unis (IMU, PMC etc). You'll not be able to enter any local unis though.
Well of course if you take stpm you could still opt for private unis.

if you enter matriculation you could still enter private unis. that means you could still obtain an international degree, i suppose.

stpm and matriculation are of equivalent levels. matriculation takes only 1 year i suppose. form 6 takes 1 1/2 years. in matriculation you'll learn less things as compared to form 6, hence the shorter period.

most universities, even universities abroad accept stpm equivalent pre-u's. i suppose maticulation is accepted also. not too sure on that.