Sorry to be a wet-blanket but I think these tests to speedtest.com is unlikely to give you any conclusive answer as to whether SH's speed upgrade is effective. For the two reasons:
1. Since
www.speedtest.com is an overseas website, you are going through multiple hops through the Internet before hitting the destination website. Any latency along these hops will affect your test result. And latency flunctuates depending on system resource, network utilisation, weather (in certain cases) etc. These factors are out of Starhub's control. Therefore, testing should be done only to within Starhub's network. That will give you a more stable, controlled environment for your testing to produce meaningful results.
2. Starhub is giving you a bandwidth upgrade. Latency will not change. All else being equal, these upgrade will not show up in your test to
www.speedtest.com which is basically a latency test.
A simple analogy on latency vs bandwidth : Assuming there is no congestion (network is not overutilised), if you need 20 mins to drive on ECP from Changi Airport to Suntec (latency), you will still take the same time whether ECP is 3 lane or 10 lane (bandwidth). This means whether its MOL4000 or MOL6500, you are probably going to see the same speed surfing the net. And if you think the upgrade might improve the poor response time during peak hours, you could be disappointed because the same bottleneck (shared bandwidth) will still be there.
This however could be different if you use bandwidth intensive application like BitTorrent. With the free bandwidth upgrade, you should get higher throughput. Of course there could be bottlenecks elsewhere along the network route to other P2P hosts to take into consideration.
So considering the above 2 factors, if you still want to run the test you should run THROUGHPUT testing to a server that is on the Starhub local network. Eg running multiple huge file transfers to a locally hosted server and measure throughput. You will need to run multiple FTPs because of TCP windowing but I won't bore you with that. You can read it on the net if interested.
My personal opinion to this free upgrade - It just a blardy marketing gimmick. And ISPs should STOP using the term "speed" when it is not because technically its bandwidth. Might be true during the 56k dial-up days, but in this day and age of ADSL, speed =/= bandwidth anymore.