One of the hills of Sheffield, but I mentioned it as they were here at the time and I could hear the wind.
They tried shortening the drop but noise was still there so they replaced the whole thing. Apparently there had been damage from a tree that's been gone for over a decade.
Line attenuation seems slightly improved but strangely Plusnet line is syncing a bit slower than before, probably due to the weather getting warmer. I assume they must have put a junction on the outside wall as they didn't rewire the sockets indoors.
Gotta admit it was a bit nerve racking that they only tested the Plusnet line despite effectively rewiring both lines, but I totally appreciate the bureaucracy of why that was the case, even if it does seem short sighted.
Nothing they did really came as a surprise obviously considering how much time I spend on here. Was easy to be all relaxed about it when I was getting 100Mbit off Vodafone while I left both lines turned off so the line replacement wouldn't upset DLM.
I did discover some quirks with pfSense, apparently having the default gateway group with DSL as tier 1 and Voda as tier 2, wouldn't work. I had to set it to a gateway group where they all are tier 1 before it would allow pfSense itself to send DNS queries over Voda.
So overall a satisfactory solution. Its a shame due to covid we couldn't offer tea and biscuits.
[EDIT]
Actually strike that, its resynced faster than it ever has before although Plusnet profile not caught up yet.
That could be good or bad, as may mean the HH5A OpenWRT is still unstable with G.INP. But then again, maybe it will sync higher on the Zyxel now anyway.