Didn't realise vectoring was rolled out now by BT OR?
It would certainly make sense though. My line is capable of full sync if there is a local power outage, my HG612 must beat the other routers to sync so very little crosstalk.
There is currently no USO in place in the UK.
Vectoring is sometimes deployed on BDUK funded cabinets to help meet properties passed targets with "superfast" speeds.