As most aviators utilising the KUL & SIN a/space are aware that SIN controls all traffic over the South China Sea i.e after VPK. With ever increasing tfc crisscrossing VPK, most of the levels are occupied. Given now with the RVSM a/space, levels are being occupied every now and then. It has always been SIN ATC's style to release traffic inbound to KUL at the TOC (transfer of communication point) i.e VPK or Taxul. Some proactive ATClers will ask SIN to release tfc earlier. However by the time the inbound acft calls KUL ATC, it may too late to issue a descent clearance because someone else has now come closer to you. Hence not enough radar separation to descend. Tfc from BKK to SIN and vice versa thru VPK has also increased. Just imagine not only we have to descend u guys but also issue speed restrictions eg 250kts. There are limitations and these limitations are increasing by the day. With new radar controllers coming into the scene, skills are lacking as they do not have enough experience to push acft down earlier particularly the A330's.U wud have noticed that we have opened a new sector between VPK and VKB. the freq is 134.25. This has relieved us of coordination but not the traffic.
