As most of us know, a 'peak' on the display screen when using a Time-Domain Reflectometer (TDR), either as a function of a multi-meter (such as a JDSU), or as a stand-alone tester, is generally indicative of high resistance. The higher the peak, the greater the resistance with an 'Open circuit' practically showing the 'peak' touching the top of the screen.
However, it can also show a 'Poundage change' between jointed cables. IE: The original UG feed to the house may well have been 0.4mm diameter wire, jointed to a 0.9mm diameter OH cable at the pole ??
Also, just an observation, but if I had my mate (an excellent engineer) stood at your premises, and asked him to estimate the distance to the pole, I can tell you now he'd be 30-40mtrs wide of the mark. That's why we have pedometers. What I'm trying to say, is judging distances is pretty hard, and the new drop-wire could well be 60mtrs long ?? Like I say, only an observation.
What is interesting is the comment about a 'trough' followed by a 'peak', this when presented on a TDR screen is more often than not a wet-joint. I've tried to find a picture to show this, but to no avail.
. Did the engineers trace actually show this, or is this just derived from HLog data ??