Better and Fairer Scheduling for PSLE Oral Exams?

Was given a letter to inform us of our son's forthcoming PSLE oral exams on 16 and 17 Aug12.  Felt that the scheduling gives rise to unfavourable conditions for 1 group of students :

Session 1 (S1) students

- Report to school at 7 am

- Once completed, proceed to canteen to wait for dismissal

- Dismiss together at 10.15 am

Session 2 (S2) students

- Report to school at 9.30 am

- Once completed, can be dismissed

Was quite shocked to learn from the form teacher that this has been the practice for many years.  And no one has feedback that this does not ensure that all are tested under the same conditions?

Firstly, S1 students need to get up at 6 am to get ready while S2 students can sleep all the way to 8 or even 8.30 am?

Definitely more energised with more sleep!  And better focus!

And then S1 students have to be "locked in" for 3 hours instead of being released to go home and prepare for the next day's exam.

The teacher told me that this arrangement is from MOE.  Can someone there please look into this to give all students a level playing field?  Even if this does not change the forthcoming exam, let it be heard that this arrangement is not fair and hopefully help other children in future.

Sure there can be an arrangement to subject all students to the same conditions, right? Instead of just telling the parents "someone has to be in the morning session, right?".  Even the Science syllabus always pose this exam question - "Why did the teacher said that her experiment was not a fair one?" Answer - because there is more than 1 variable - a fair experiment should have only 1 known variable - and in this case, the student's ability.  There should not be other variables such as different number of hours of sleep and rest that will affect a

student's ability.