My suggestion:-
Do ur best, get the best grades u can in poly but dun sign-on
yet.
Then go into army, do BMT liao then make decision.
Reason is simple, a job in SAF is NOT EQUAL to the commercial u see
on TV. Experience the BMT first, if u fit into the army dude
persona then go ahead sign on! If u do ur BMT liao but u are still
a business man mentality then sign-on is definately a big
no-no.
DUN become my friends, being psycho by the recruitment talk,
action, money, etc, etc then sign-on for 10 years then found out
they are not army material then KPKB. Y? sign-on liao black and
white, army is not something u cannot suka suka quit one, got
penalties one.
So be wise, experience first then decide.