So...recently google announced their new service(Google DNS).
News all over the net was mentioning about how secure and how much faster it is than your ISP is providing..
hence i tried to do a traceroute to determine if its worth the change from what Singnet is providing me. But I couldn't really tell the difference as the speed was very similar.
1 of the things that Google pointed out was that cache misses are a critical performance factor for DNS services. But I think cache misses dont happen so frequently & even if it does, waiting a few more seconds wont kill you.
So I did a couple of tests & runs with namebench to get the most accurate results.

Conclusion: No it's not worth the change. Singnet DNS still runs faster.
Singnet DNS is 50ms faster than Google DNS.
I think it's due to the number of hops from my
(IP > Singnet's DNS) vs (IP > Google DNS).
If I live in America, I reckon it might be faster.
Still, Isn't it amazing that Google DNS is faster than our local ISP(Starhub)'s DNS? :)
And i probably wont change DNS unless...
- Singnet's DNS keeps going offline or crashes.
- Google becomes an ISP(Which i doubt so -.-)