I'll try to give all the information I can:
I am currently on ADSL and getting a stable connection. Very little reduction at peak times.
Sync Rate: 15632
SNR (Margin) 3db down (manually tweaked from 6db. No errors / drops). 6db up.
Attenuation: 29.5 (down), 14.8 (Up)
Distance to cabinet: 975m (approx, via roads)
Distance to Exchange 750m (approx)
Fibre has been enabled in our cabinet this week, and I was keen up upgrade - mainly for improved upload speeds so i can take advantage of cloud services.
However, the BT fibre estimator gives:
FTTC Range A (Clean) 14.3 -> 20.3 Down, 0.8 -> 2.2 Up
FTTC Range B (Impacted) 8.7 -> 17.7 Down, 0.6 -> 1.8 Up
Clearly this is potentially slower than ADSL, especially the upload.
My current ISP only quotes the lower of the range A figures, and I'll be stuck on Fibre for a year unless my actual speed is less than 80% of 14.3/0.8.
Do i stay on ADSL and be grateful that it is a lot better than some people get, or risk Fibre for that magical 20/2 possibility?!