What's the point? I am as courteous with our special-friend "BOAC", as he was with "Wirbelsturm". Yes, I missed the fact, that the VOR/DME is slightly past the threshold, so DME 8.7 is in fact 7.7 NM from the runway - not a big difference! 8 * 330 = 2640ft + 1670ft = 4310ft. That is pretty close and good enough for a rough cross-check. I was hoping that you are doing that as well for each and every approach in IMC!