So, that's the story.. I really hope Hpasp could dig deep and find why K is so different, I believe that there is something wrong, especially against jamming targets on low parameter (i.e slow angular speed on azimuth), but he knew better.

Here are my thoughts about Dvina vs Habu...

To be able to consistently kill the Habu, the Dvina miss two things...
... jamming burntrough due to the small radar cross section of the Habu, and enough missile overload capability.

For the second, note that the 11DMVK missile could pull a bit more g's than the 11DKU...
11DKU is comparable to the V-755, while the 11DMVK to the 5Ya23.

... but it is also slower a bit.

The RCS of the Habu is lower than the F-105, so if all the jammers are working, no burnthrough.

The radio proxy fuse of the missile would need the following miss distance:

11DKU
30% chance of hit; 140m
50% chance of hit; 130m
80% chance of hit; 115m
100% chance of hit; 60m

11DMVK
30% chance of hit; 220m
50% chance of hit; 205m
80% chance of hit; 180m
100% chance of hit; 95m