Some further observations....
1. I had bitloading over 1.1MHz yesterday, not much, but it appears the high attenuation
is to blame, rather than restrictions on the dsl being transmitted.
2. I've actually had bitswapping !! Never had it on max.
3. snrm dipped below 4dB yesterday eve, still no CRC build-up or sign of dropping sync.
4. DLM still off
d/s 5.5 Meg, u/s 0.82Meg.... happy 'Jack