Yes, I would indeed be interested, especially if you have any from when attainable rates were higher to compare against what they have been more recently.
I called Sky complaining of a speed fault after it had got to the point of the upload hitting 10000. I was happy when the upload went down to around 15000 but getting under 10Mb/s just bugged me (when I had seen the max attainable speeds on install). I basically had to argue with the Sky Fibre Team lady, at one point she said it must be the router, which it obviously can't be (when I can see my sync, shh), she did three line tests, the first and third had shown that the line was fine but the second had shown a fault, it ended in me saying I'll pay for the engineer and then she put me on hold and spoke with her manager (I think), once she came back she said are you available tomorrow, I was, and he came the next day, at about 12 I think. I never got billed for it, rightly so as the fault wasn't past the Demarcation Point.
An Openreach engineer was here for about two hours, he looked at the line and eventually came to the conclusion that a 'lift and shift' was required, so he contacted someone to do the 'lift and shift' (who came from the exchange, I think). The DSL light was off for at least half an hour. The DSL light eventually game back on and he came back a few minutes later, ran some tests, I
think the line length said something like 263 metres on his JDSU (the Openreach engineer who originally installed the faceplate didn't have a JDSU).
I'd also like to mention I may of had around 46000 max upload on day 1, not 36000.