KL's relation with MH is difficult, at least from an operational point of view.
KUL remains KL's weakest destination in Asia, together with BKK. The problem is that MH still hasnt alligned the departure times of its Australia flight to the arrival times of the flights from AMS, leading to overnights in KLIA etc.
The plan for the summer schedule (latest I heard in Dec) was that they want to make SIN a 777 turnaround (SIN cargo position was said to have deteriarated) and to make the KUL flight end in JKT (always good for plenty of low yield pax). MNL was said to be doing OK and would be direct.

Only thing I dont get is; Can SIN alone fill a flight?