SamF: Speedtest is still the best for general throughput. But the main thing is to watch for disconnections or high CRC error rates.
Speedtest was 28.8 last night was 23.8 ish before making the change. CRC errors are not as high as those in an earlier post. I'll keep an eye on it.
I'm guessing though, that there are not too many services capable of sending out data at the high rates we are testing. I'm not aware of any HD TV streaming services, etc in NZ.