An update as now in the house and connected to FTTC this morning, my estimated speeds from plusnet were 13mbit (normal DSL was around 3mbit so any gain is positive!), dslchecker suggested 20.1 - 13mbit on a clean line.

So it's nice to see I'm connected at just under 21mbit considering I'm around 1.5-1.7km from cabinet!! 11th person connected from our cabinet too. perhaps it helps as this cabinet is located in a not so populated part of the village?!