My initial reaction was yes, the base-line is too high, but reading back through the other threads it looks as though that may be normal for NI - I'd forgotten that's where you are.
But that fluctuation is really bad.
Am I right in thinking that's the ex-BT Broadband line? When he replaced the line to the pole, from what point at your end did he start? Did he come all the way back to the master socket? What about the maze of wires around that - how "removed" are the redundant ones?
Is the Sky line run through the same cable from the pole, and if so at what point does the feed to the master socket for that separate out?
I only remember seeing one set of stats with error counts included. Could we have some for each line please?
Does the Sky latency fluctuate like the Aquiss (ex-BT) one?