Hpasp, one about Krug - what is the missile velocity (average in-flight and burnout)?
In some cases (even not at maximum range) the target and missile marks at the range display close to each other painfully slow. I have even noticed cases when distance between missile and target is increasing! When 3T method is using, to observe that effect, even with a receding target, the missile must be actually slower than the target! (I didn't shoot at Scud :), and the effect was before 65s from launch, which mean that the engine must have been still running). Even with the target taking aggresive 180 deg turns shortly before expected impact (which, as you said before, is still not the case), such effect would be corrected by guidance system within a fraction of seconds.

I know that the Krug range display is just a linear way to show sometimes curved reality and I'm not an expert in math, but where is the fault in my reasoning?